Each of us may think about the passage of time differently. When I was young, I had too much time, and it seemed that I waited forever for summer vacations, my birthdays, or favorite holidays. But with age, these milestones fly by.
Even for us who were blessed to have stellar lives of achievement, there is nothing more boring than someone whose conversation is all about their past. Furthermore, defining yourself by past measures is binding to the emotions, good or bad, associated with that time; thus creating, for some of us, the risk of letting residual grudges, disappointments, and anger cloud our emotional vision and block future opportunities and joy.
So, focus on squeezing all the life you can into the time you have. If you haven’t already, develop a bucket list of new goals for yourself — places you want to go, people you would like to see, and things you want to learn. The past is gone forever. The future is not guaranteed. All we have is the present.