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.
Fleetwood Mac were really accessible musically, but lyrically and emotionally, we weren't so easy. And it was our music that helped us survive. But all of us were in pieces personally.
It's much like writing a screenplay with someone else and that's how we view it, I think.