Your entire resume is outstanding. Why not apply to other Ivies as well? You have just as much as chance then anyone else. One thing to focus on is to centralize your ec’s toward a specific passion or major that you want to study.
Chance back?http://talk.collegeconfidential.com/what-my-chances/1818642-stanford-rea-rd-cornell-brown-dartmouth-ucb-ucla-etc-p1.html