I truly feel for you….
Treasure each moment, up till the end you will find “moments” of connection with her, I did with my mom.
My mom went thru Dementia to Alzheimer’s 2015 - 2021 passed, left us at 84. Her sister (my aunt) 2009 - 2023 same.
We’ve walked the Detroit Alzheimer’s walk since 2018, with her loved ones in support. Below from 2021, 8 of her 10 grandchildren, which 2 of my 3 children are there.
@jbachandouris, having gone through this with my own mother, I cannot stress how absolutely correct
@mtbdudex is, when he writes about those "moments of connection".
They do continue, right up until the end, but they are unpredictable - because you never know when they will happen - and all too fleeting, for they don't last long. When those moments of connection occur, (invariably unexpectedly), seize them, cherish them, and treasure them.
Music can help; my mother adored ABBA, and (thankfully) never remembered that she had just heard it; thus, we had a CD of their greatest hits playing on an almost continual loop, simply because she loved it, and listening to it put her in a good mood. I am so grateful to that group. Other music (the Carpenters, for example, which she used to like when she was still well) made her depressed, and feeling sad, thus, after some experiments, we just played ABBA for her.
Likewise, re food; many people with dementia lose their appetite completely, and thus, become almost emaciated as they do not wish to eat (or drink) anything.
My mother didn't, but that was because we surrendered (completely) on the subject of healthy eating and just gave her what she wanted to eat.
Thus, sausages, chips, (fries) and roast potatoes and dessert featured regularly because she loved them, vegetables were disdained, whereas anything that tasted sweet - (developing a sweet tooth seems to be a feature of dementia, prior to developing this condition, my mother's strong preference had been for bitter and sour food - gooseberries, rhubarb, black currants, tart apples, and so on, a taste I share, whereas, once her dementia became pronounced, she developed a very marked preference for food that tasted sweet, such as almond croissants, chocolate croissants, apple tarts with cream and maple syrup and so on) was devoured.
The very best of luck with it.