Hi cheerie,
Although it is easy not think about it, i try to face this concentrating on the present.
Indeed, the past is something we remember of, full of nice moments (maybe some bad as well) and it is something we probably would like to replay somehow, and re-enjoy, but it is not possible.These are life rules.
Future is of course something we will face, but we don't know (and by 'we' I mean all the mortal beings, healthy or ill), and unfortunately we can't predict 100% (we try like the weather forecasts , but we often fail, at least in my experience
).
What we have is the present, today, so if it's a sunny day and you feel good, enjoy it as there won't be tomorrow.
When death and all of its friends will come to take me, i'm pretty sure i will be ready to go, and after i think i won't care about my mortal life.
Maybe i'm talking selfish, as i have no children, and who i will leave behind , especially my gf , i'm sure she will suffer, but she will make it through.
Of course, i would like to spend more time on this beautiful , even cursed planet, but this choice is not up to me nor you. So try to enjoy the moments without the fear of something will happen or the guilt of i will leave someone behind.
We're just in the stream of life....
M.