It didn't hurt as much as I anticipated. A long time ago, I told myself I would be published before I hit thirty. I missed that mark, but at least I snuck in before 4-0 hit.
Aging is very strange. Little things sneak up on you. One day you have a few gray hairs, and then suddenly they're taking over. Or taking your kid to the park. I remember the days when I could run and jump without hurting yourself. Now I just shamble along behind him. At least I'm still (mostly) of sound mind.