I have a narcissistic-abusive sister and two other sisters from hell. Mom is somehow involved. What others do?

I thought the place of my innocence was loving & trustworthy. At about 21, I found a conspiracy my oldest sister started since I was 9 when Daddy died: (a) My siblings had excluded me from the inheritance igning me a low-income-tenants slum, then accusing me of stealing it from them. (b) They let me go through law school to save Dad’s oil-rich lands without telling I had no rights. (c) Back then they used me as 24/7 chaperone with no childhood socialization, blaming our Hispanic culture. (d) They went dancing leaving little me with a ually-abusive man & rubbing on daily what he did to me. (e) Mom failed to protect me. My brother defended me from their slanders but he died young. (f) I’ve been Mom’s caretaker during fake narcolepsy attacks & her old age, but the sisters say it is the Lord who has cared for her. They’ve never thanked me. (g) I recently discovered that money I’ve helped Mom save was taken by her favorite daughter; while I spend on Mom’s entertainment & minor expenses. (h) I distanced myself from sisters but they continued alienating me from the family & stealing my friends.