I don’t fully agree with this vision. Time is so relative. You can think that 8 years is a lot. But if we lived 10000 year’s as a human, and you die at 80, you would think : Oh god, i’m so unlucky my poor existence is brief and insignificant.
The secret is to fully embrace the instant, do what you love, and the som of all will be perfect, even if a bus crush your bike tomorrow.