My mother has dementia. I despise her.

I have learned that dementia, shall we say, amplifies the personality. Thus, if you were prone to fabrication and lies, then dementia will make those personality traits all that much more apparent. I despise my mother. I have uncovered pieces of misinformation leading all the way back to her childhood. These little "lies" directly affect me. At this point, I can't stand interacting with her. I don't mind paying the bills and all that, but I just cannot interact with her anymore. I need help from the nursing home, but when I ask, they don't seem to give me anything other than a goat-eyed stare. I'm at wits end.