Oh my gosh. That's such a terrible, tragic ordeal. I'm so sorry to hear those terrifyingly abusive, cold & disturbing events. What an utterly horrifying start in life for you. Well done for summoning yourself to move away and look at your memories and your past in Therapy. That's really brave and strong of you & your anger about the whole thing is utterly justified. I think what is important is to focus on your feelings. It sounds like it may be a good idea to explore writing a letter for yourself if you feel inclined to. Even if you write it fully you may not want to send it in the end; And you are not in anyway obligated to. It can be the case that the memories prove to be enough to help you make up your mind as to whether or not you want to interact with those people again. Well done again on your decisions & take care.