18 Entrepreneurs Share Their Biggest Business Regrets Learn from these mistakes, so you're not doomed to repeat them.

Whether it's not taking advice sooner or taking advice you shouldn't have, waiting too long to take a risk or making a bad call, even the best business people have a regret or two.

What separates the great business folk from the good is the ability to dust themselves off with an optimistic attitude, learn from their mistakes and share the experience with others while moving forward.

These entrepreneurs have done just that as they share their biggest regrets and the advice they have based on the experience.

1. Utilize your time.

Name: Margie Warrell

Company: Raw Courage TV

Regret: I spent far too much time on activities (like perfecting powering designs) that didn't leverage my greatest strengths -- emboldening people -- and consumed significant chunks of time that could have been put to far better use (like writing more books, running more public programs or just hanging with family.)

If I had my time over I would have spent more time working on my business rather than in it, outsourced more and acted more like a leader than an admin clerk.

Last year when I interviewed Richard Branson, he shared similar advice: "Know your weaknesses and find people to do what you will never do well so you can fully leverage what you do best."

And one more regret: Doubt myself less and back myself more! Which I guess explains the first regret: I simply underestimated my ability to change the world. None of us should.

2. Learn from failure.

Name: Jack Delosa

Company: The Entourage

Regret: If I go back to when I started my first business, I was 18 and didn't know much at all about running a business. I made every mistake in the book, from not having a solid understanding of my consumer to having no clear vision for the business and life I wanted to build. That business ultimately failed, which I could look at through the lens of regret, however I consciously choose not to.

Instead, I see that period of my life as my apprenticeship in business, the lessons I learned from those failures shaped who I am today. As an entrepreneur you need to give yourself this grace to fail, especially in the early days. In order to achieve anything great, you have to possess the ability to persevere through the challenges that will inevitably come your way and learn from each milestone along your journey.

3. Don’t rely on talent alone.

Name: Ben Harvey

Company: Authentic Education

Regret: The number-one regret I have in business is believing in "natural talent."

There is a thought-virus that sneaks into people's minds all over the world and it sounds like this: "Of course they can do it because they are naturally talented at XYZ." It also sounds like this: "I am naturally talented therefore I can not truly improve my skills because I was born with them".

I regret that this thought-virus prevented me from realizing early on that anything can be learned. Anyone who had achieved the levels of success I desired simply learned something new and then applied what they knew. It also prevented me from truly valuing the skills I had spent a lifetime developing because I had convinced myself I was born with them and they were natural to me.

4. Assess the risk.

Name: Simone Milasas

Company: Joy of Business

Regret: My big regret would be taking investment for a business that I had to shut down. It was a "risk" investment and yet what I realized was that people were not investing in the company, they had decided they were investing in me.

It was a lot of pressure, and when the company was not doing so well, I closed it down and made the commitment to return 50 percent of their investments. A choice that I made to honor their choice. I learned a lot of how people function and what they are willing to be aware of and what they refuse to be aware of.

5. Take accountability.

Name: Debbie Pask

Company: Zenful Business

Regret: We entrepreneurs are risk takers, independent and passionate people who take on the world and seek full accountability for our actions and future. This wonderful drive often means we forget to stop, be still and ask for help and support from those around us. This simple act of asking for help or advice, and accepting it, has been my biggest regret in business to date.

There have been numerous times in my early business life where I could have saved thousands of hours and dollars by simply asking my personal network for a few helping hands in time of need. Asking for help sounds so simple, yet it is a critical step for any entrepreneur. It tells the universe and everyone around you that you deserve -- better yet, command -- the energy required to realize your dreams. That you will engineer your own talents and drive, as well as the entire weight of your network, to bring your big vision alive.

Being able to give and receive in equal balance is the key to success in business. What favors or help have you called upon lately that draws you closer to your dreams? Magic happens when you stop sprinting so hard and dare to ask.

6. Never say no to growth.

Name: Katarina Nilsson

Company: Eqvarium

Regret: I regret saying no to business opportunities where clients desired to buy more from my company than I initially offered. I turned them down instead of adding to my services and moving forward together with my business. Why did I do that? Control. Fear. Fixed points of view on what my business should be about.

I was basically standing in my own way -- not the smartest of choices. It slowed down the growth of my business.

So how do you get out of your own way in business? When you stumble on a possibility, pick up the ball and run with it! Ask yourself what else is possible that you have not yet considered. Make quick decisions based on your gut and act on them. Trying and failing beats playing it safe.

7. Don’t be too hard on yourself.

Name: Dr. Dain Heer

Company: Access Consciousness

Regret: I used to wake up every day judging myself for what I didn't do yesterday, and at a certain point I realized that if I'm going to truly create what I'm capable of, I've got to start living "No More Regrets." You see, judgment is one of the biggest killers of our creative capacities. Judgment stops everything. So instead of judging me for what I did or didn't do, I started living these four key tips:

1. Have way too much fun, more than you're supposed to.

2. Have no regrets and do whatever it takes to enjoy being alive.

3. Lower your barriers.

4. Drop the resistance.

8. Don’t wait.

Name: Tom Harari

Company: Cleanly

Regret: My biggest regret is not launching sooner. Sometimes, the best thing you can do for your company is that simple: Launch quickly to test your hypothesis and see if your idea has legs. As I've learned from experience, if you're not embarrassed by your first version, you've launched too late. We now have this as part of our ethos at Cleanly, where every idea is tested with efficiency and thoughtful attention to our assets, with an emphasis on shipping and monitoring results before committing more resources.

9. Know your limitations.

Name: Zac Maurais

Company: Favor

Regret: We wanted to get our app to market fast, but our team was limited. Being product-minded founders, we went heads down developing our app and systems before hiring a team. In retrospect, growth could have been even faster if we hired instead of doing so much ourselves.

Scaling a company starts with finding amazing talent and delegating projects. Having the right operational processes and playbooks in place to handle growth is key to scaling your startup. Today, three years after launching, we have more than 100 employees and a full executive team.

10. Delegate.

Name: Asher Hunt

Company: Overnight

Regret: Don't try to do everything. Over the years I've developed a range of skills from design, engineering, marketing, leadership, fundraising and more. I thought I could do it all. I can't, and I shouldn't. I've taken on too much at times and I've had the quality of my output suffer because of it.

Being an effective leader isn't doing everything -- it's being able to set examples for a high bar of quality and work-ethic while enabling others to prove their mastery. Surround yourself with great people and give them space to excel. You will be a more effective leader.

11. Trust yourself.

Name: Asher Weinberger

Company: Twillory

Regret: As an entrepreneur I am constantly seeking advice from those who have had deeper experiences. While I think that's a good thing, at the same time I have also learned on my own and perhaps in a tougher way that a business is a living organism -- no two are the same and what works for one may not work for another. My role as CEO assumes that I have my finger more closely on the pulse of my business than anyone else. My regret is not realizing that during certain critical junctures.

But hey, as Thoreau said, "Never look back unless you are planning to go that way." I don't.

12. Timing is everything.

Name: David Rusenko

Company: Weebly

13. Trust your team.

Name: Konrad Billetz

Company: Frameri

14. Let go.

Name: Darren Endo

Company: Oak Labs

15. Take your time.

Name: Emily Motayed

Company: Havenly

16. Always trust your instinct.

Name: Magnus Larsson

Company: Rebtel

Regret: In the past, I've hired the "best team on paper," and regretted it later when the teams failed. If your instinct tells you that you should have a diverse team to best solve the task, hire that team and don't get carried away of great resumes or great references. And even more important, when you identify the failure, make changes sooner rather than later!

17. Follow your passion.

Name: Constantin Bisanz

Company: Aloha

Regret: I've had my own businesses since I was 14, but it wasn't until Aloha that I discovered the true importance of aligning my professional work and my personal passions. I had been focused on the end goal in my past companies and building with an exit in mind, and I regret that I didn't make the realization sooner.

I feel so much more fulfillment doing what I'm doing now, and knowing that I'm helping people achieve the kind of health that I'm passionate about, and I think it's a good lesson for anyone else looking to start businesses. Just do what you love.

18. Focus on the future.

Name: David Mandell

Company: PivotDesk

Regret: There are many things I've learned along my entrepreneurial path that weren't perfect, or possibly considered mistakes, but I've benefitted from all of them in the long run. I doubt I would make any decisions differently in hindsight and truly don't regret any of it. Instead of focusing on regret, I've tried to use former challenges to inform my future actions and help others do the same.