Try your best to keep your goals to yourself. When you start explaining your idea to someone else, the thought is that you receive a dopamine reward associated with completing that goal. Common wisdom suggests that if one tells all their friends about their awesome idea, they'll be more motivated to finish it, but this just isn't true. Individuals who explain and take credit for their idea are more likely to feel more accomplished than those who keep it to themselves.

This was one of the biggest things for me. Be humble. Keep ideas to yourself and reward yourself on results, not just ideas.