"Invest in knowing yourself. Don't be afraid to experiment, ask questions and be honest with yourself. Recognize when you are energized and excited about the day to come and pay attention to when you are stressed and/or bored. Avoid falling into a trap of pleasing others. The better able you are at identifying environments and roles that leverage your innate strengths and passions, the more work becomes rewarding vs 'just a job.'
Build your support system early. As you get started in your career and gain more experience, it's natural to want to break loose and go at it alone without any guidance. But it's never too soon to seek out advisors, mentors or a peer group to learn from and ask for help. This investment early on will pay dividends many times over as you grow, mature and rise up in your career. Always remember to give back and build up your 'chits' for when you need help.
Know you can do it all but not all at the same time. Give yourself a break."