Statistically speaking I have approximately eight months left to live. I get the full benefit of living for each of those days. It is quite comfortable to me. USA Death is random and indiscriminate, part of the general Chaos of the Universe. Chaos is God's choreography.
Nobody needs to know when the show is over.
It is enough to dance, and to know you can rest when you can't dance anymore. Life is enhanced by thinking about Life. Life is also enhanced by a healthy awareness of Death. Life is most certainly Not enhanced by planning. Your plans are apt to be dashed to pieces in the Chaos.