Tough question. Some say forgive, forget, forgo I'm not sure. If goes on saying if you can't forget you have only overlooked it. I do not believe in the penance process for receiving forgiveness. But, I believe confession is a first step.
However, I do 'accept' confession by proxy when it involves another individual. I mean this in the sense my dad and mom have passed. I experienced amnesia when 24. Sometimes I have recollections of terrible acts on my part in my eyes. How do I confess to them.
So, I write it down, meditate on it, sometimes that is a few days or longer and sometimes not long at all. I ask within my belief system for forgiveness from the higher power or God. Then I burn it solemnly in the bar-b-q pit. Does it always give me psychological relief - no. But, it sure gets the ball rolling for me toward accepting forgiveness has having occurred - singed, sealed and delivered.