You could change from your past. I know living int he past like this is kinda stupid and can be really depressing/unhealthy but just for some fun I felt like making this since for some reason I have been thinking about this lately.
-I wish I had started playing sports when I was younger. I wouldn't have to be (most likely) dealing with my weight issue like I am right now
-Played football. I'm 6'3" over 350 lbs right now while out of shape but in high school, though I was still over weight I was 6'3" and just under 300lbs as a freshman. I probably could have started at either o-line or d-line as on the varsity squad and used that to get a scholarship to college. Past college I doubt but you never know
-Been less of a dickhead in high school. I wasn't a bully (at least, I don't think I was) but I was a it of a jackass/dickhead in the sense I was a sarcastic/cynical jerkoff that probably chased some people away with my attitude.