When I used to look in the mirror, my brain didn't think age. It wasn't even a thought.
My head was obsessively full of ambition. Just ideas in my head that I wanted to figure out and conquer. Late nights building tech stuff on my own dime & time, just figuring out things out of curiosity, which eventually lead to a career. I was curious.
My existence in that realm was probably overkill. 24-space racks of servers, VPN switches, other related devices upstairs under my desk, 24-space-racks of guitar-related stuff downstairs in my studio. Night after night obsessing over either tech or pro audio.
I had passion.
Now, when I have down time, I don't know what to do with myself. I look in the mirror and I slowly start seeing that image that you've always had of yourself, regardless of how old you were, ...change. The passion for anything is gone. It's not even "me" that I'm looking at in that mirror anymore.
If I should die sooner than later--I wouldn't have wanted to prolong aging and what it entails. I would have been bored anyway, extending my life into stagnant misery.