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.
“And, these Islamic fundamentalists, these radical terrorists, these Middle Eastern monsters are committed to destroying the Jewish nation, driving her into the Mediterranean, conquering the world.”
“Religion which requires persecution to sustain, it is of the devil's propagation.”