I just feel so completely "blah" compared to my sister?

Were you the other girl in the pic with the cousins? In any case, both of the girls in that picture are BEAUTIFUL. By the way, I am 23 and have a 21 year-old sister who I am also extremely close to (we went to the same small college for two years, spent every minute together, etc.). She is beautiful, outgoing, fun, etc., and always attracts the cute, fun guys. All I can say is, when you separate and go out on your own (like I am now) you will realize that you are special the way you are and won't be constantly forced to compare yourself. Try to develop your OWN friendships and circles. And remember, people are allowed to have different personalities--that's what makes the world interesting!