Ive realized that my sister is a sociopath and im at my wits end.

So my sister is 16 and has been diagnosed with borderline and adhd. She has always been a problem for me and my parents. she has been hitting, pushing and pinching me for the past 9 years and has never stopped even with therapy. Shes been in and out of therapy and has been on god knows how many medication. Shes a compulsive liar and has a bad addiction to drugs. She has spent most of her childhood spreading lies like wildfire and even getting our family banned from public places because of her lies. She lies to the point that she has actually went to the principal and accused me of sexual assault when I was in sixth grade. She 100% knows what shes doing and I fear that she will eventually surely do something violent towards me. Anytime I try to talk to my parents about it they just say that "I dont know what shes going through" and that im a bad brother for not supporting her. I dont want to mention anything about gender but I find it kinda ironic and funny that my dad is such an extreme feminist and has somehow convinced himself that im at fault for his sociopathic daughter. my parents have always been on her side and honestly I believe they think that im the problem. I cant think of any way to make them see sense and I think that I may be fucked if I dont leave home immediately. I can barely talk to her without her throwing a fit.