My senior year of high school when I was 17, in November, I was arrested due to theft from a retail store (I stole a mascara and some makeup as a dare). I was arrested and charged, but later did these community "theft classes" (how stealing hurts), and later got it expunged off my record. I am not proud of what I did at all, and i definitely did an idiotic thing by not thinking and giving in to stupid impulses. I deeply regret that, and I can say I have honestly learned from my mistakes. It was a really stupid thing to do, not like me at all, and it could've easily been avoided had I not been an idiot and minded my own business.
The thing is, I have it expunged, but I know AMCAS wants you to report everything even if it is off your record. That is what i plan on doing, however, I have grown as a person and never had any incidence or anything of the sort throughout undergrad. I would never ever repeat that or anything remotely like that ever. I don't know how to tell ADCOMS that i am NOT that person and never will be, and that I have grown from that. How badly will this affect my future application? What should I do?
EDIT: I am 22 now, will be 22 when i apply and 23 if i am accepted and attending any med school.
EDIT 2: To clarify, i am 100% reporting it to AMCAS