My mom is burned out trying to take care of her mother

DEAR HARRIETTE: My grandmother has been sick for about a year. She's slowly losing control of her body and mind. She's not capable of living alone as she can't walk much and shows early signs of dementia. She has a live-in caretaker.

My mom often goes over there to spend time with her and provide social connection.

However, every time my mom comes home, she's in a bad mood – and understandably so.

It…