I spend so much time with the brightest and most talented and well-rounded people. I've had the privilege of having long and very intellectual conversations with people and sometimes I just sit there and listen. It's like a better version of a class. Even though I'm not sitting at a desk and in school I'm still learning all the time.
As I said there is nothing wrong with failing. Pick yourself up and try it again. You never are going to know how good you really are until you go out and face failure.