I don't know if I could say I 'corrected' things I feel I did wrong...what I did do was try and learn from it so that I, and, if it involved others, they could move forward knowing that I accepted responsibility for my actions.
You can't. It would be like erasing history. I won't confess my sins here. But I can tell you I erred. Drastically only once. I had to accept it and await my final Jury when my life passes on.