Abusive mother ruins Christmas

Abusive mother ruins Christmas makes me cry and threatens to throw me out onto the street making me homeless again for the third time in my life. Finally ready to cut her off and never speak to her again. Probably never allow her to speak or see her again and her future grand children. This is after I told her to stop “having sex with herself” because she was continuously moaning for 30 minutes while sitting next to me after being “in pain” while Im thinking this abusive person is trying to add sexual abuse to the mix. She said due to my comment that I am “sick in the head”. Mind you, she already gaslights me and forces me to see a psychiatrist every month while there is nothing wrong with me and take medication as part of a living agreement with her. What is wrong with this woman?