Help a Sophomore into Columbia

Hi CCers,
Long time lurker here. I am currently a sophomore in the following ECs:

Notable (?):
Managing Editor of School Paper
Founder of FBLA (Competitive business club)
Debate (Lincoln-Douglass, novice)-often place in JV, (doesn’t mean anything though)
President of Spanish Club

Service:
Hospital Volunteer, Front Desk-every Saturday 4hrs
JCC (We meet with teenagers who have committed mild crimes and warn them off)
School Library Volunteer

Standarized test scores so far: 720 SAT2 Bio, 199 PSAT, 5 in AP Chinese

(anti-)Hook: Asian-American born in China

What else can I do!!! I don’t do anything outside of school for ECs and I don’t do a sport/play instrument. My top schools are Columbia and UChicago (I’m a city girl). Looking at my current ECs, I really feel like I’m lacking in comparison to other CC applicants. I don’t have any major awards or full scores…Can any CCers recommend some ECs I should join? Or any way that I can improve my current ECs?

My FBLA club was founded this spring, and we missed all the big competitions. I’m looking for an FBLA mentor because no one at my school has any experience with FBLA compeitions. Also, any LD advice for a novice is also greatly appreciated!