Another thing to those who felt like therazor, which reinforces what Piper says - people with all these good things behind them can be intimidating to read about, but guess what - chances are, they knew about a lot of things before you did. Knowing how to be intimidating and making it your priority to do the required achieving is a huge part of it. Remember that you're young and (hopefully) have a long life ahead of you, and that it's possible to better yourself a lot as you get older. Arguably your most meaningful achievements will be when older.
A school like MIT is tough to get into for almost anyone, so there's really no reason to let CC get one down.