My family is a mess too and I had to move out when I was a teenager because they triggered me terribly. My mother has depression and makes terrible decisions while my sibling has depression (and something else) and a personality disorder of some sort. I'm not exactly sure what she has since she will not admit she has a mental illness and will not seek treatment for it. I live in a much nicer home and I haven't been this healthy in years. I hope you can find a better home soon since having family members that impact you negatively is quite the burden. Sorry you have to go through this