I got my Z my senior year of highschool
1. I don't think it changed me too much cause the highschool that I went to was soo small (90 students in graduating class) there was no one to impress that wasn't already
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2. Like I said not a lot of people really cared, if anything I would have a couple kids trying to talk cars with me or give me the occasional stare down at the light with their carpooling mini van