How do I get help?

Oh my gosh I posted a question on here yesterday about my home situation.Needless to say muy mother left the doors unlocked and wouldn’t let me or my grandmother lock them because she said her ’‘friend was coming over’’ and that she was going to get laid. My grandmother got up at 5am this morning to find the doors unlocked and porch lights turned on. She made it up. All day she has been going off and ranting/having delusions/ Not even hearing my grandmother talk to her. The she started screaming saying that she was fine and that its us who have the problem. I honestly am at the point where I absolutely hate them both. I hate my grandmother for being weak and not doing anything to get her help or to protect me. I hate whatever has taken over my mothers mind. I hate how my grandmother says she doesn’t know what to do and then she enables her. My grandmother turns around and blames me for it and says I bring it out of her. She tells me to lie and says that no one will believe me and that she will not let me leave to be with my dad or let me call the police. My grandmother almost had a heart attack today and said she was experiencing chest pains/headache and said almost drove off the road. She’s fine and back to her old ways of playing the martyr and going woe is her and that she has to make me go through it with her.I know this sounds evil, but do you think that there’s anything I can do?I think that I don’t wanta relationship with either one of them because I’m lost and I can’t handle the both of them. My grandmother denies everything that’s ever happened.