You’ve probably heard all the motivational shit that gets peddled in such situations. One thing that has stuck with me over the years, is that the best songs are about failures. Very few decent songs about successes. Seems to me that failure is nothing to be afraid of - it’s liberating and creative. And puts an end to that particular fear. You have already found out how crippling fear can be. Failure is nothing compared to that. Go forth and give whatever it is a reasonable shot.