Over the years I've saved articles that were of interest to me as I grew older. Now that I'm 71 they're speaking to me louder than before. I'd like to share them with you in hopes they may enlighten of comfort you.
"You're going to die; How to deal with it."
http://lifehacker.com/youre-going-to-die-heres-how-to-deal-with-it-1791498957
"Between Solitude and Loneliness"
"Why does time seem to move faster as we grow older"
"How to die"
https://www.theatlantic.com/magazine/archive/2017/10/how-to-die/537906/
"‘Letter Project’ Makes End-of-Life Wishes Clear"
"Depression Linked To Accelerated Cognitive Aging"
"Memory issues for older people could be the result of 'clutter'"
If you have suggestions for more, please leave them in the comments.