@Sama – Your previous failure(s?) is probably (part of) what makes you hungry. If you were already some super-rich, uber successful dude, then why commit yourself so fully to something so hard and so new? You're not some fat happy rich dude like most VCs. You've got something to prove, and that drives you. To me, your past failure is not a liability, but an asset. YC is your chance to make a mark on the world.

(I don't know if this is how you actually feel deep inside, but if it is, I wish you spoke of it so.)