I didn't workout for all of 2011. Got lazy and stuff, but I got back into it in the beginning of summer 2012 and I've been going strong since. Makes you feel good when you're bigger, stronger, and faster than most people you see.
Not attempting to talk to very many girls during my high school years. Too much fear (and experience) with rejection. I'm sure I would have enjoyed some bits of high school had I actually taken that risk instead of giving up early on.
I do too much stuff that makes me hate myself. I'm just a moron. It's a good thing I forget these things or else I would have destroyed the world with self-hate (which would have made me hate myself more).