She's a sick woman and the only way out is to totally seperate from her, stop all contact. No guilt, no shame, and no explanation necessary. Best step I ever took. Now I have a little sister who is 33. You could be her, get out and save the kid and yourself. By the way she is the baby and the oldest is 50. The female parent totured all of us but for some reason, me more. Also, therapy has helped me a lot with the traumatic memories. Good luck.