you're so brave to share this story. I know how hard it is to get things out, but is one step towards healing .... so sorry this happened to you, lots of this story i can identfy with. i wish you the best in all you do, this may not help but my mother was one of my abusers and she is out of my life now, only after she had the opportunity to give me some answers and i never heard from her .... it's your decision on whether you confront her, please make sure you are in a good place yourself if and when you do .... take care, you sound like a strong person, these things make us who we are, usually stronger and more compassionate towards others.
love, Jinnyann xoxoxoxoxoxoxo