I just need to vent...

My mother is severely mentally ill and she is on a bunch of meds for it. She doesn't always take them consistently and I know it effects her mood, but sometimes I just get so sick of it. I'm tired of her excuses and the fact that she feels she is entitled to act like an ass to everyone that comes her way and we just have to deal with it. I get that she is not right and impulsive, but my sister and I have suffered through her mental illnesses right along with her. It's not fair that we have to understand where she is coming from and it is not the same in reverse. I wish I had a normal mother. I wish she would have taught us to play and be normal kids. We gave up our childhood because of this and she expects us to give up the rest of our lives too. When we tell her about herself it's"i am your mother you have to respect me", but when has she ever respected us? She is coming to visit in a couple weeks and i told her i didn't want anyone in my house while i wasnt home (im due to have a baby), and all she could say is oh its fine its just so and so. like no, you need to respect my house. i own this mf and id be damned if I'm uncomfortable because you dont want to listen. im just so fed up.