Well, first we'd start by defining "success." Who gets to decide that? Society? To heck with what society says you are. They don't get to make that call, because they don't know the inner battles you've gone through. Only you know that. And here you are, with those inner battles, and still standing. Sounds like success to me.

Nobody on this planet, I mean nobody, succeeds all the time at everything. And nobody on this planet, I mean nobody, fails all the time at everything. So you're not in the same place other people are at your age. Big deal. Did those other people face the same obstacles you have faced? Have they climbed the same mountains? What would they do if they were in your shoes, playing the cards you've been dealt? Would they fight as bravely as you have to keep going?

Never judge yourself by what other people can do. You've heard that saying about not judging a fish by its ability to climb a tree, haven't you?