My mom’s dementia is ruining my family's life. She is constantly accusing me or my 8 year old daughter of horrible things.

My mom’s dementia has gotten worse the past 6 months or so and she is constantly accusing me or my daughter of stealing her stuff. Pants, hairbrush, quarters, cigarettes, her money in her account l, you name it she’ll accuse one of us and even my husband chad of doing it. Yesterday she accused us of being the ones that made her German shepherd having spine issues and not being able to use her hind legs. Despite the vet saying it’s a degenerative spine disease in ever back spine where she can’t feel her back side and is struggling to use her legs and paws. We even have them wrapped to protect the paws from scraping the concrete when she goes out to pee etc. She has already got scrapes that would bleed all over the place so the bandages help prevent them. The dog gets medicine that is supposed to help. Yesterday my mom blamed me , my husband and our 8 year old daughter Scarlett of being the ones that hurt her legs. Which of course untrue. We are all dog lovers and would never hurt a dog purposely. We have our own dog. My moms dog is turning 11 soon and is a German shepherd. They tend to get these type of issues and my mom has raised plenty of German shepherds in the past I knows this but with her dementia getting worse she is now blaming us for her dogs issues. After months of getting mental abuse from her I blew up. My words were mean and hurtful. I sent my daughter to a neighbors house and I locked myself in my bedroom was crying and shaking. I have depression and anxiety issues already and my mother has been really taking a toll on my mental health. I can see that it’s bothering my daughters mental health as well. No matter how much I reason, explain and deny every accusation or help her find the things she thinks I stole she still consistently accuses me of things. I even had to call the cops twice for her behavior and the EMTS bc she took off from my house in the middle of this heat and told my daughter she was going to kill herself. Which of course she denied saying when the EMTS and cops arrived. My daughter would not make that up, plus it’s something I’ve heard all my life even in my childhood growing up. She’s been a miserable person as long as I can remember. My older siblings who have kids that are older and out of the house won’t help and actually tricked me into taking care of her. See bio ! I’m now licking myself in my room 4 times a week just to get away from her constant verbal abuse. She literally admitted to doing it to hurt us. Even tells us she hopes god punishes us. I feel like a prisoner in my own house and I no POA to put her somewhere. She literally can switch the dementia on and off when the cops and EMTS get here. So I’m down to gathering videos of her being abusive. I feel so bad for our daughter. I vowed to give a loving happy childhood bc I didn’t get one and I know what a bad environment can do to a young child. I’ve been seeing a psychiatrist for over 20 years now. I’m 43 and I just want to be happy raising my family and instead I feel as though I’m a child all over again dealing with my parents abusive relationship and the nastiness I’ve received from my mother all my life. This time it’s worse though bc the dementia makes her say the most hurtful things that no person should ever hear from their mother and I fear for my daughters mental health. And not one of the 3 older siblings will take her. She won’t go to an assisted living. I have no POA. I feel like I’m losing myself. I’m depressed and becoming more unhappy with every single word sge says. How do I look pass it and not look at her with such hatred in my eyes. She is ruining what should be the best times of my whole life. A loving supportive husband and an amazing miracle child who has made my life worth living is now not enough for me to want to even get out of bed sometimes. My depression is getting to me again and my stress level is so high I’m afraid I’ll have a heart attack in my own house at 43. Any advice would be helpful. Ty