My mom hates my guts, what should I do?

I’m a 19 year old girl and my mom is 52. She tells me she “hates my guts” and that I have no purpose in life. She throws my things on the floor, empties my drawers, tells me I have no friends, and ridicules me constantly. I have diagnosed autism (I only recently found this out as she never told me) and extremely high anxiety and was prescribed Xanax for my anxiety attacks. She now tells my little sister and her friends when they are over that I “pop pills”. I currently go to college and live at home, but I am in the process of transferring just so I can get away from her and live on my own. But i won’t be fully transferred to my new university till fall of 2025. I have no idea how to handle this in the meantime. I have threatened to call CPS multiple times as she displays abusive behavior in front of my little sister who is a minor, but she tells me if I do that she’ll evict me. I have videos of her being abusive towards me and my family, and she has even told my 13 year old sister that she hates her as well, so I know I’d have some sort of case. However, I don’t want to be homeless and/or kicked out, and I also don’t want my little sister to go into foster care. I have no idea how to proceed and am frankly terrified of the future. If anyone has any suggestions on how to best handle this delicate situation, I would be extremely grateful.

TL;DR— My mom hates me and is verbally abusive. I have no idea how to protect myself before I move out.