Hey you thought about trying to see a therapist first to talk thru these emotions & feelings?
With psychological damage I think you need to heal yourself first from the inside, before you go & have sex again.
Your going to run into triggers & need to have a safety plan in place if something comes up. Your next partner is going to need to be aware of this so they can watch for triggers & help you get thru it.
Take your time & heal first.