I realized...
We are all dying.
Every second we live is a second closer to our death.
You may think this is a bad thing...but how could it be bad?
This view means that each second you live wasting time or doing something you don't want to be doing is a second you'll never get back. A part of your lifespan disappears, floats off into oblivion meaninglessly.
So do what you want to do. Do everything as if you're dying, because you are. Live with no regrets!