Caregiver support

Hi. I’m new to the forum. It’s been 4 months since my 90 yo mom moved in with me and my family. She has not been officially diagnosed with Alzheimer’s or dementia but she has the symptoms. I am in the process of having her see a neurologist next month. I am her full time care giver. All my siblings are scattered around different states. She uses a walker, has had knee replacement on both knees a while back. She was pretty independent at first, able to undress, shower, use toilet, dress, fix her hair, brush her teeth, eat. However recently she started getting confused, just sit in a daze, not knowing why she went in the bathroom, forget to take off pants and diaper to use bathroom, plays with her food, try to organize it, separate them and put it together like trying to fit the pieces together. And when I tell her to try put it in her mouth, she always says it doesn’t make sense, it doesn’t match. She forgets to go to the bathroom now. Her hands never rest, fidgeting here and there, touching this or that. Now I’m finding myself having to be more attentive, be with her in the bathroom while she brush her teeth, use the bathroom, and shower. I have to help her dress and fix her hair. But then on good days, she will be totally fine again. But it can switch back and forth like night and day. She’s very bad with drinking fluid, so always prone to infection, dehydration which doctors say can cause the confusion, disorientation and become delusional. I’m afraid I might be wearing myself thin and becoming overwhelmed, so trying to find ways for support to help myself before it gets to that stage. I really have no family here to rely on. I have a 17 yo who’s still in high school, another older dtr but she has 3 young kids of her own and one more on the way, I’m also a caregiver for my husband who has cardiac heart failure, living on medical devices and awaiting a heart transplant. Currently in the process of looking for care homes or something to help me out so I don’t burn myself out.