Grandfather is 92 and is now in a hospice. My mother (daughter-in-law) visits him every day. Grandmother is 88 and requires a lot of care as well. She is in relatively good health but is demential, diabetic, and has hand tremors. She requires four insulin shots a day and can't do it herself because of her shaky hands and that she has almost no short-term memory anymore. My grandfather used to do that but now that responsibility has fallen to my mother.
My mother works from home as a part-time accountant and also manages some of her own real estate. Because of the schedule for grandmother's care, my mother is not able to do the activities that she used to do. She can't go to church anymore, can't go to nightly Bible studies, and most importantly, she can't leave town to see her own father who is also in his upper 80's.
I call her every day and she recently expressed to me that she feels stuck and feels that life has no purpose or joy. Her only joy is being able to talk to me. She and my grandparents have always had some animosity but she does it out of an obligation after her husband passed away. I've suggested moving my grandmother to a home as well but grandmother is stubborn and expects my mother to keep caring for her. She also does not want to spend the money required to get some in-home care.
How do I encourage my mother and most importantly, get my grandmother to go to a home so my mother is not overwhelmed with feelings of despair and depression?