Realistic book about mortality or more so anxiety about losing loved ones

I’d like to read either fiction or non-fiction about losing a loved one. Actually, I think I would connect more with a book that explores the concept of mortality and mild thanatophobia without being too scholarly or philosophical like Socrates. I have a hard time connecting with stories where the character knows they’re dying or the death of the loved one is due to a terminal illness. I guess it has something to do with the fact that people have an opportunity to say their last words unlike unforeseen deaths, though I did like the ending of the movie (sorry not a book) “A Little Bit of Heaven.” I also subscribe to the idea of celebrating the life of someone rather than mourning their death, but maybe I’ll feel different when I actually experience grief. I worry about losing certain family members and have been experiencing moments of…anxiety (?) more frequently this past year. I should note that I’m not seeking advice for therapy right now. I think a big reason for my fear is because I have never experienced loss of someone close to me. I’d like to read about what that feels like and how to cope with loss so I can ground myself.

by tiledbathroom