Not sure what to do next

Hi. For the last year, I've been considering going no contact after moving out of my mother's place. As of right now, I'm still here, but I am hoping to leave by May.

I'm struggling/going back and forth because I have so much love for my mom and sibling despite how mean they've been. They'll call me lazy, say I'm stupid, say I'll never make it on my own. Then, my mom will make sob stories to her boyfriend or whoever about my mental health, suicide attempt, and health problems. I had an awful depression episode over a year ago, which essentially made me bed bound, and she just made jokes about it.

I feel so guilty for wanting to decrease contact because I'd feel awful if something happened and I wasn't there for her. I'm extremely conflicted. She's so hot and cold with me.

Also, I've recently found out there's a possibility I have an autoimmune disease due to recent bloodwork, and I'm worried my environment could make me seriously ill.

I know after I move out, at the very least, I think limited contact would be best but I'm unsure.