Always second best HELP?!?

Okk soo im in 8th grade and I have a twin.... we are complete opposites. We go to the same school and its puny so its one cl per gradee, we have been in the same cl for 9 straight years, yaa its tough. But my problem is im always the being called quiet and im not @ im just quiet compared to her becuase shes very loud and opinionated. We have this school that were close to and she hangs out with them a lot and ive heard from one of my friends there that people feel sorry for me because no1 knows me and evry1 knows her...... soo im always second best around her @ school and outside school the only place im not second best @ is diving, i dive and she doesnt soo thats the only place im not with her pretty much so its hard to deal with. Also when im talking to someone and lauren says for example katee they turn around and go talk to her and im left basically for her. Also im choosing between 2 high schools i want to go to bothh, my twin is going to the one where all the other people are going probably we'll see letters come out next friday. So im worried if i go to the same one as her l'll be " twins sister" as im called now by some of the other school people. Soo im confused and sorry for the such run on confusing sentences but please give me some advicee thanks so much if u do :)