Things I don't miss about actively participating as a gymnast:

Waking up too early for school/class/life, sleepwalking through the day, and fearing that practice would kill me, just about literally. I could hurt myself in such a state.

You would think that the fear would wake me up, but instead it was a mix of worry and lethargy. Like drinking black coffee and watching your fingers twitch, wondering if eventually your brain would catch on.

I can live without that feeling.