Please won't somebody tell me

how you make peace with the past?

I am being hounded night and day by stuff from the past.  Stuff that I can do precisely nothing about, so going over and over and over it is futile and an exercise in self-evisceration.  I am at the point where I'll do almost anything to shut off those voices of condemnation.  I said almost, don't worry.

So how does one do this?  How does one make peace, and walk away leaving the past in the behind here it should be.

How?