I may repeat what's already been said, sorry
-- I just read your first post.
anyway-- I feel I've missed so so much of my life and I dont' get a do over.... like about 70% of my life I've been "absent" , it seems --

but what I try to do is be thankful for TODAY. I tell myself how lucky I am that I still have today and as far as I know I have tomorrow. My sister that has passed doens't have that, a niece may never live the length I have, as she has an inoperable brain tumor, I've not been told I have three months to live, I got to see my kids get all the way through school(unlike a woman I knew when my kids where in preschool, her daughter was in class with my son- the woman died, never getting to see her daughter growup) maybe I don't remember a lot or felt a lot and maybe I didn't finish college or keep a job long.. but--
--
compared to many many others I am fortunate to have today and probably tomorrow and for that I am thankful.

I hope you can seize the day and SEE a tree with new eyes(in a way you've never seen it before), or a flower or feel the wind in a way you never have before. ......

maybe instead of thinking one only has 5 -10 years left-- thinking that one has many "todays" left and treasure the present.

maybe I'm a bit mushy or too simplistic ...
but... that's what helps me anyway.

best to you Ygrec

fins