You point out black and white thinking, i don't know your age and i'm not asking for your privacy sake, but what u are saying could possibly be a projected personality disorder, i'm not gonna say which since black and white thinking isn't a telltale sign. But the rest could evaluate to something like that, some type of exposure therapy sounds good for you man and u should really think about it.
But anyway.
The way u explain it, it seems u are almost certain that judging your decision on your capability to function well with adjusting to the trust with your family is a no go. I'm sorry for your bad past though man being hurt in anyway, verbally or physically leaves a mark and will always leave a scar. But trying out new things to alleviate that compressing felling on your wound will benefit for change. Trial and error man i suggest it, it's easier said than done but it takes a lot of trial and error to mimic people, and that right there shows there is something in you that can enable and destroy a harsh sense of evaluation when it comes to tough situations. And u may be asking what kinda trial and error? the uncomfortable feeling's of course, feeling ok in those moments, understanding that those moments u do feel this tension and unfortunate uncomfortableness. To find a way to sit with it and understand it won't change but get better with practice. inches at a time push yourself to be at peace with the uncomfortableness of your tormenting feelings.
i suggest looking at this link i will present, it will help u better understand what i mean