I think we get older and scared and we make life so hard, so complex, we pick it or it picks us but either way we start getting into the details so hard and furtively that we lose the 23-year-old way we rushed up each day to see what new thing would show up. We get consumed with the very details of living life.
Plug the hell into life! That attitude of being hopeful and invincible can come back. It exists inside us. The belief in a future of endless possibilities doesn't have to go away just because we get older. We can start making a whole list of why it won't work out ... or make a list of why it will. Or screw the list, just go live some life.
The best times are when you spend more energy living and less time worrying about consequences that may never come to pass. I'm writing this not to lecture you but to remind myself to just relax.