To be successful as an entrepreneur, have a clear view of next steps. Some people quit a job they don't like but end up in a new place that's no better.
Entrepreneurs often seem like they are so put together – their plan is on target, they are doing amazing and life couldn't be better. But many times that couldn't be further from the truth. And that is okay.
The co-founder of Facebook and editor-in-chief of The New Republic pays attention to how users are responding to a product, and then tweaks accordingly.