So many wise words here. I will just a prayer that you find purpose and joy in the time you have before the Lord calls you home.
The experts (psychologists) tell us the deepest emotion we can experience is grief. You can hate someone fiercely, you can love someone deeply but grief surpasses them. I think they're right.
My paternal grandmother was put in a nursing home and she hated it. I hated to see her miserable but there was nothing I could do. Her last words to me "Don't ever grow old". I'm not sure how helpful that was to me at the time but I'll never forget them.
There's a verse in the song in "My Generation" that puzzled me when I first heard it (teenager), "I hope I die before I get old". The older you get, the more funerals you go to, death doesn't seem like the boogieman we instinctively fear. I'm not trying to be morbid, but I hope when my time comes I say "I'm ready and have no fear but only hope in my Redeemer".