My heart goes out to you. I have been a caregiver for several Alz people and when it isn't your family it is easier,
My SIL started ALZ in her 50s -- part of the effect of Lyme desease. She can still swallow but has forgotten how to feed herself. She is in a nursing home in a restricted Alz area. She has no idea who anyone is and is happy within her own little world.
Please try to get yourself some help. I know this board is here for you with love and hugs. We all have shoulders to lean on.