If you don't know already, PTSD can be passed on from generation to generation. I realized today that my mother's mother had it due to a house fire where her two smallest children died. Hers was unresolved until the day she died. She had Alzheimer's disease for more than twenty years.
So what do we do if we want the cycle to end with us. We resolve it! We figure out who did what to us and forgive them. That's it, just forgive them. Probably impossible for us all. But all you have to do is try. Ask God to help you and let it go.