Where do I sign up? My parent and an aunt both have dementia and there's no way I'm going to hang around not remembering who the hell my family is or where I a

Where do I sign up? My parent and an aunt both have dementia and there's no way I'm going to hang around not remembering who the hell my family is or where I am. I could hang on like Jimmy Carter (who is mental sound) and go 20+ years as a shadow of my former self. Not putting my family through that.