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.
The things that have always been important: to be a good man to try to live...
The Soviet Union did not achieve victory over the West so was my information...
God in His wisdom has decided that He will reward no works but His own.