People seem to mature between year 11 and 12 and they stop becoming so judgemental and horrible. Like mentioned previously, people will be far too busy with their lives and education to participate in stupid and petty acts such as bullying and making fun of you. And i understand feeling self conscious, but for the time i spent at college, i was far too preoccupied to pay attention to it.
And hey, i promise you, after the first week, if that, everyone will stop putting so much effort into looking "good" and will put the bare minimum effort. And you'll be okay.