There is a wonderful speech about the conditions and methods of how we pay for our past wrongs, given by Heather Bollech-Fonseca. She goes through the three stages required of us to forgive ourselves.
1) Repentance – We must be sorry for what we did.
2) Expiation – We must go through a trial to absolve ourselves of the wrong.
3) Reparation – We must repair the damage we caused.