I quit playing in HS because the reality that I was too small to be this slow was apparent to me. I had no future in the game past this level so let's just call it now.
But what Ryan Clark said resonated with me at 40. He said at 24 I didn't even know that I COULD die. It's true. Yeah, you know. But you don't know. Most people have fortunately never had to face their own mortality at that age. You haven't faced any serious health issues and your immediate family is probably still alive and relatively healthy.
At 16 I was in a bad mountain biking crash. I was knocked out cold and bit through my tongue so hard I chipped several teeth and cracked my helmet almost completely in half. My entire thoughts on the matter were, damn that sucked. Literally never occured to me it could've been so much worse. At 19 I was involved in a partial ejection rollover car crash. Same thing. Damn, that sucked. Keep it moving. You're just invincible on your own mind at that age.