Reapplying the next cycle is fine as long as you improve your app. If you have to be a re-app, stress that you matured and how you became certain you want to be a physician.
Something like prison education would certainly be interesting and make for some damn good secondary essays. Just make sure to get a good amount of clinical experience as well.
If you re-app, add some more safety schools with lower average stats. Best of luck though, and you certainly aren't down or out yet!