When you feel betrayed by everyone around you, that is when it is so important not to betray yourself. Trauma on top of trauma is something beyond words. Trauma literally effects your brain - so what you describe is perfectly normal and supported by research. You have been through so much and I absolutely validate what you just expressed. You are spot on with everything! There is an article on TELL written by a husband of a wife who was sexually abused by her therapist. You may want to read that.

Be gentle with yourself during this very difficult time. Sending hugs.