Northwestern and IB?

Northwestern is my top choice, but I’m not sure if my GPA will suffice. I have a 3.6 unweighted, 4.3 weighed. I have only received 1 C, which came in IB Math SL. I am a full diploma candidate, taking 4 HLs and 2 SLs. I received a 1400 on the SAT (I don’'t plan to take the ACT), and I participate in numerous extracurriculars: Vice President (and soon to be president of Young Investor’s Society, 7 years of musical theater, director and screenwriter of numerous films, working 15 hours a week. I am also starting an internship with Bank of Mellon this summer. I know this seems like I’m bragging, but I am riding on these activities to get me into this school. What are my chances, and is there anything else I should do?

if you really want to go, apply early, will help a lot