Will I get into Northeastern?

I don't know really know if you'll get in. You might, but there's a good chance that you won't. A couple of my friends got into Northeastern for engineering this year, but they're both ridiculously smart, plus they had the girls-doing-engineering advantage. I'm guessing from your extra-curriculars that you're not doing engineering. I don't know as much about the other schools at Northeastern, but I think it's pretty competitive. Your SAT score and GPA are decent, but not really impressive. It's good that you've held jobs; colleges like that. Your clubs are ok, but they don't show off commitment and dedication the way playing a sport or an instrument for ten years would. So, you could apply, but make it a reach school.

Your GPA is too low; unless you are really famous in the competitive ballroom circle, I'd say your chances are pretty bad using strictly stats (your EC's aren't that good either).