I'm sure you've sat there and had these REALLY good thoughts about things you want to do or achieve. You sit there and think and think, and think about what could go right, and what could go wrong, and how maybe you're not quite as good at it as you think, and maybe you actually suck at it, and maybe you'd get laughed at until you just decide that you're not gonna do that. Been there, done that. Don't analyze until you get analysis paralysis!!