It is an emotional time ahead for you. My Mum was diagnosed with Alzheimer’s at Approx 92. She lived with it until nearly 97. She was confused and forgetful at the start but still my Mum. I would look at her sometimes and think “there’s not much wrong” and we had some lovely times together and were both positive about the future.
Then she forgot how to cook, how to get out of her reclining chair, how to use her stairlift and had loads of falls so was unsafe at home. She spent her last 3 years in a very good care home. She was safe, gained weight and enjoyed the company.
I visited every other day and we used to sit in the garden, go for a drive or a push in a wheelchair. She loved having me stay for lunch too. These were great times and then she started imagining people were stealing her newspaper, colostomy bags, knitting wool etc and this caused her great distress. Reassurance didn’t work so I just had to change the subject.
It sounds like your Mum is further on in the dementia journey than my Mum got to but just keep going, lots of cuddles, hand massages, painting nails, brushing hair etc so she knows you are with her. Old photographs can be useful to just jog her memory too. Take care. Xx