Super-Amazing Girl!

She's smarter than you.  She's been to more places than you.  She knows more famous people than you.  She gets more free stuff and therefore owns more than you.  She's had more experiences than you.  She's played more sports more competitively than you.  She's won more awards than you.  She's been in more clubs and organizations (and probably held leadership positions in all of them) than you.  She's accomplished more and overcome more adversity than you.  She has higher aspirations and worthier dreams than you.  And she's done all this while having been alive fewer years than you.  If you ever forget any of this, never fear, she'll always be there to remind you -- usually right in the middle of any sentence you attempt to squeeze into a conversation, lest you actually complete saying anything regarding that on which she cannot best you.  Who is she?

SUPER-AMAZING GIRL!