I understand what you are saying. Mine is worse at night trying to get to sleep. You rerun the past in your mind over and over again. The pain and hurt you felt rushes back over you and drags you down. Most of the time I end up staying awake, lost in past pain, lies, heartbreaks esc.
I have found that if I can feel it coming on before it gets in full meltdown mode I can stop it. I have to find something to take my mind off it. I read, watch TV, surf the net till the sleep takes me. I still loose sleep just not as much.
As seeing a T helps a lot to. The Meds have worked wonders. They do not take it all away but it gives me a edge on stopping it before it starts.

I hope you feel better and find some relief. I do know that forgiveness is a powerful start.

Clemfan