From reading this, I have a similar problem and wonder if it would make sense for me to break ties with my family too.
My story is this:-
My parents were difficult to live with, I have 2 sisters and 1 brother. Coincidentally, my parents split up after i'd moved out. From that moment on, my parents played me off against each other, which meant moving to live closer to my father rather than my mother. Both of my parents have opposite personalities, but equally are as bad as each other really and I feel stuck in the middle and they manipulate me because they can, because they know i'm not verbally expressive and making eye contact due to my Autism. Then there's my 2 sisters and 1 brother, my sisters especially who are just downright rude, abrupt and mean. One of those sisters is a control freak, just like my father is and she has totally shut me out of her life for the last 3 years and not bothered to make any effort whatsoever to visit me, my father has already put me in a psychiatric unit twice and blamed that because of my alcoholism, not because he's the nasty, manipulative control freak he is, who knows i'll never stand up to him by being verbally expressive and he'd wipe the floor with me, and the best way I can describe my relationship with my father is that I can't bear to look at him and haven't looked at him for the last 10 years. I used to nod my head to his yes and no answer questions and he nearly threw me out at 18, and then since i've just responded verbally, but instead not making eye contact. I find my father domineering and controlling, at times during arguments with me he's said to me "go back to your mother!", but both my parents played me off against each other. I fell out with my father at one point and didn't seem him for 2 years, and spent those 2 years putting the time and trust into my mother, but she let me down and couldn't cope with things, thus playing me off against my father and admitted it eventually and how she couldn't cope, and that explained why i'd made the drastic decision to resume contact with my father, but that I feel is to the detriment of my welfare which I fear could have tragic consequences such as a fatal car accident or something or road accident. I don't know what everyone else thinks, i'd have cut ties long ago if it was easy enough and having the courage to do so, otherwise i'm stuck in this predicament.