Heres the answer in the song you chose Jeff:
For what I've done
I start again
And whatever pain may come
Today this ends
I'm forgiving what I've done
I found it exceptionally hard to forgive myself because for some weird reason I thought I should be held to a higher standard. I'm not better than anyone else so why should that be the case?
Something that helped me was I would forgive someone for something they had done to me then I figured I should get forgiven for something. It soon became clear to me this would end up being a wash. Such a shame because some of those things I had been holding onto for 40 years like there was going to be a final exam or something and I should remember them.