What are my chances of getting in?

I'm 6th, class of 31, I had one B+ in MP1, the rest are As, living in Mahwah. Other important stuff are:

(4th-6th) I have two advanced classes, advanced math and gifted/talented.

(6th) I am a student council homeroom rep (Higher roles are only available to 7th and 8th)

(4th) Got 1st in Continental Math Competition Regionals the advanced math participated in, got 10th in Nationals.

(4th) My gifted/talented class entered a law case competition which our class won 2nd.

(5th) I got perfect state test scores in reading and science, and 829/850 in math.

(6th) I'm in an engineering club.

What should I work on, and how are my chances?