mom with undiagnosed schizophrenia who refuses help-need advice

Hi I (26F) have a (65F) mom with what I believe is undiagnosed schizophrenia (I am not here trying to diagnose her, just observing from my life with her). I’ll get to the question first before I give background: 
—My boyfriend thinks I need to move out. I think I need to move out because my mental health is to the point I can’t even take care of myself anymore with basics, but I don’t want my mom to be on her own either because I love and worry about her, and my dad having to be with her on his own to take care of her when he has his own health issues. So do I move out, try staying part time at home…advice on how to help her if she refuses to get help? I’m having panic attacks almost daily because of it
As for background: 
Mom believes my dad and I have implanted a microchip in her brain and are controlling her through our phones. This has been for years now but has progressively gotten worse. She has other delusions as well but this is the one that gets her upset all the time. But she can seem to snap right back out of it and act neuro typical on occasions, and is very nice. Some other things are believing she has many different illnesses, that the doctors she goes to are on my dad and my side against her, pacing the house quickly, slamming and cleaning things excessively, etc. I’ve been in counseling myself for it, asked if we could do family therapy maybe and she automatically assumed we are out to get her again, told her I’ll help her get help in any way…and now I am at the point of giving her the ultimatum: get help or I won’t be around much in her life, even though that’s not what I want but it’s destroyed my ability to function at this point. I can barely keep a job because it’s so exhausting and emotionally draining. My dad and I both love her so much and are at the end of our ability to cope. What do I do?