My grandma is in moderate-severe stage of mixed dementia. I have been her main caregiver for last year and a half, but she has recently become so angry towards me on a regular basis. It will come out of nowhere, and she has been calling me names, and telling me to shut up constantly. She is also telling other family members how awful I am, and that I don't do anything to take care of her. I know that delusions and paranoia are part of the disease, but her constant disrespect has become very difficult for me to deal with. Especially when I have sacrificed, and done so much to take care of her. Any advice on how to deal with this sort of thing? It is almost miserable for me to keep coming back each day.