I too have a birthday coming up next month. And I too think about all those going over the waterfall. At some point in recent years, when talking to family back home, I started saying, "well, we'll all be dead soon anyway," meaning not me and family, but ALL, everybody. Everyone alive on this day, Tuesday, July 6, will be dead in a pretty short time, 80-100 years, and a great many of us long before that. It somehow puts things in perspective for me.
Of course, there'll be a new and improved version of 'me' out here in the time after that, (barring a very fortunate shift of Mind.)