For those over or approaching 60; do you find yourself measuring your life in terms of the years you have left?

I do.

I know that the average life expectancy of an American male (in my State) is just over 75½ years. I know this is just an average and that I could go tomorrow or live to be 100 but knowing that there is this uncertainty doesn’t change things.

Knowing the 75.5 year number causes me to view my life in terms of “Only another 13½ years left, what do I want to do now?” on the good days.

On bad days it is more of an “Oh God, not another thirteen years!”

I chose age 60 in the question because that is approximately the time that I began looking at life in these terms. I would be interested to know if those who are younger sometimes look at it this way and if so, when did you begin to think like that?