What Are My Options If My Mother Is Trying To Get Only Money Out Of Me?

Hi, I'm a mid-20s male having family issues. My father died 4-5 years ago. My father and mother had a complicated relationship and both had affairs, and fought all the time. I had an abusive childhood that involved some physical abuse, and extreme emotional manipulation. As an observer, my mother, a housewife, has always been a control-freak and uses any form of manipulation to get things done. To the extent that inside the house, me and dad were forced to eat what she wanted, wear what she wanted, and so on. She locked me up inside my room to have sex with another man when I was 10. My dad never filed for divorce, and by the end had teamed up against me. He did have an affair, although he kept it out of the house. My dad had a meager income, and my mom was always busy fulfilling her own wishes and wants. I have spent most of my childhood in extreme poverty, despite my parents managing to keep up appearances on the outside. I was always the one, that both of their frustrations came out on. I was never allowed to go to a good school, or college of my choice, have any toys I wanted, or anything. By some luck, I had been able to get away from all these with a job. I had to get therapy to resolve all these issues, but they are resurfacing again. I helped repay the loans my father had left us with, by working 2 jobs, and pursuing my post-grad at the same time. My mother only knows my income, and doesn't even care about the job I do, and has pretty much been using me for only money since dad died. Now, the past few months, I have resigned from my job and am working from home because I am sick. However, she makes it impossible to live with her at home. She is consistently pestering me for money, and going around telling the neighbors I'm not treating her well, and forcefully getting unwell by not eating or eating only unhealthy food. In truth, I can live for cheaper at a PG, for the amount I have to pay my mother. She has always been the one that has handled the finances, my father had to ask for daily travel money from her when he was alive. I still don't know how much money dad had, or what the insurance was after his death, or what she did with the finances, or on who's name our flat is. I just pay the money. She never let me know. I can't keep giving her money, and she is forcing me out of the house using the 'old deprived lady' sympathy talks. I have a good reputation where I live, and everyone sort of knows how irritable she is as a person, but, it is a family matter, no one is getting involved. I suspect my mother has psychological issues, but she has never gone for treatment, and is using that as an excuse to do anything. When I tried to leave the house to go stay on rent, she called up relatives and asked them to ask me to send her money because she has no savings? I cannot presently afford to live separately and also send her money, can you please let me know what are my options?