Venting bout mom 💔💔💔

Okay my mom had my sister when she was 17 with my abusive dad because she felt like she was stuck and stayed with him for years!! She had me at 19, then my bro at 21, btw in between pregnancies she would smoke like a chimney (Cigarettes) and she gained a lot of weight w her 3rd child like 250lbs because of depression! My dad was an abusive alcoholic, like he would do the broke shit (now he's a changed man because he's old and doesn't wanna be lonely). He worked as a truck driver so when he was gone, oh we loved it. He would call my mom up and say hes cheating on her and stuff ( my mom didn't care, as long as he wasn't touching her). One day he came back home and raped my mom. He went back out of town and my mom finally left because she met a wonderful lady (now wife) and found out she was pregnant 4 months, she's 25y now (she has a period once a year due to her obesity). So my mom is newly dating her gf and finds out this mf came in her and got her pregnant! She had to get a csection and of course "my dad" wasn't there because he was out having "fun". So my mom has been smoking cigs since she was 16 and she's now 43 and still weighs over 300lbs. My mom's life has caused her to fall into some hardcore depression and she ate/smoke to cope with it. Since she been with her wife, she been trying to help my mom loose weight and stop smoking and it never worked (she has major ptsd, left with a knife under her pillow for years). She even threaten to leave my mom because she said she can't basically watch her kills herself overtime. She stayed because she would rather help then add on and I thank her for that because shell always be my second mom. My mom just recently had to get surgery to make her stomach small because if she didn't loose weight in fast she was gonna die in 6 month and that her doctor was surprised she's still alive!!😢💔 so its been 3 months since her surgery and she's not loosing weight like she's supposed to, she still eats a couple chips and sugary snacks, drinks alcohol when her sister visits. I'm not sure how much she weighs now but from the looks of it she's lost a dress size she's also 5'2. She now just told my brothers and sis to split everything up because her life insurance is almost out 💔 I asked her if she's okay and she said "well I'm still fat but yeah". Omg I cannot loose my mother, she's to young 😢 we're to young to loose her already. I wish she would take her diet more serious but I know it's not easy.