I'm able to shorten life by doing mindless "have to" tasks and consuming distracting media (music, books, movies, games, etc.)

I'm able to lengthen it by deliberately, reflectively doing anything (thinking, programming, breathing, etc.).

I spent almost three decades in school -- grading and getting graded. I made that time race by as much as I could so I could get to the part where I have kids and a job that I can actually enjoy.

Now I'm savoring every minute. I feel the natural compression of time that comes with age, of course, but I'm more than able to counter it by consciously enjoying life.