You build on failure. You use it as a stepping stone. Close the door on the past. You don't try to forget the mistakes, but you don't dwell on it. You don't let it have any of your energy, or any of your time, or any of your space.
“I am always saying, 'I don't believe in God; I believe in Al Pacino.' And that's true. If I ever get a phone call saying 'Would you like to work with Al Pacino?' I would go crazy.”