Anneeba
I totally empathise. It's so cruel. Music is a wonderful help. If you can make a playlist of her favourite pieces I can guarantee it will have a calming effect. A couple of months after my mum died Bridge Over Troubled Water came on the car radio as part of a play. I nearly crashed the car as it made me burst into tears. I must have played that, along with Beethoven's fifth, a thousand times to her. We also made a video of all the photos and WhatsApps of the family, her various dogs etc which the home played for her. She loved seeing the babies and dogs even if she didn't always know whose they were. Ice-cream too, always a joy to her.
We found music very useful. Mum was Irish and loved all Irish music so we played that a lot. Even in her last week I played it to her very gently from my Ipad close to her ear and she would smile. As she passed away during the pandemic we could not get a Priest to come in but I found live church services from the town she lived next to as a child and played those to her too. She heard the priests tinkling the bells and saying prayers and she nodded at the right places even though her eyes were tightly shut.
In her last year I started writing down her memories and typed up loads and put in a file. Memories of her siblings, the village school, her parents, pets they had, favourite meals, teachers, neighbours, holidays, walking miles to fetch buttermilk, etc.
When she became bedridden and anxious or upset the staff would sit and read them to her and she would relax and smile and sometimes laugh at a childhood escapade. The staff told me that file was worth its weight in gold because it always calmed her down.