New to this TW DV

I don't know how to go about this. In short I have a stack of mental disorders like autism, ADHD, PTSD and so on. 2.5years ago I escaped a domestic violence situation with my partner at the time being the abuser. I have day to day struggles but my biggest struggle currently is family, I'm living with my parents and my sister just moved in with her fiance and 2 kids. My sister has abused me a lot growing up, she would play sick psychological games on me as well as causing physical harm to me (she doesn't cause me physical harm anymore) I'm so scared of her now though and I do think that contributed to why I stayed with the abusive ex for so long. Everyone in this house treats me differently, I have tried to please everyone and make them like me or at least convince myself that they do. I feel like I'm going crazy, the subtle animosity in this house and then being gaslit into thinking that they don't mean harm. The only person that doesn't treat me poorly (for the most part) is my dad, though when I bring these issue's to his attention he always claims his 'unaware' and 'oblivious' which yes they are his words. I don't know what to do, I feel like I'm constantly being taken advantage of and made out to be crazy because I'm autistic. I feel like I'm just hopping between one abusive home onto another.