I've spent far too much of my life not trying stuff because I didn't think I could do it. The only things I've ever done right were the times I dove right in despite that.
Joining the Coast Guard. Running off to Texas to move in with my Internet girlfriend. Going to a brand-new school that had only opened four years previously.
In the words of Virgil (and Scrooge McDuck), Audaces fortuna iuvat!