Junior doing IB with a GPA of 5.17/7 (IB Scale)!!!!

Hi guys,

So I’m new here, but I’m super concerned. This year I took the hardest courses available to me in the IB (doing the Diploma). I took HL Global Politics, HL Biology, and HL Economics (now switched to HL History for second semester), the only 4+ I got was in HL economics. I earned a
6+ in Global Politics
6- in English
5+ in HL Biology
5+ in Math Studies SL
5 in Spanish
4+ in HL Economics.
However my GPA is kind of low cause I didn’t do too well in Freshmen year of High School (it was a mixture of 4s, 5s, 6s, and 7s. My sophomore year was good it was mostly 5’s with some 6’s. The extra-curriculars I’m currently doing are Model-UN (attended three conferences two hosted by Harvard and one by Georgetown), I have started a club which essentially collects used computers and will be shipping them to schools who are impoverished and need technology and play JV Basketball. But I’m really concerned that I won’t get into my dream schools (UMiami, UCLA, USC, UCSD, UC Berkley or NYU) because my GPA is basically a B+. I haven’t taken the ACT yet but I will on April 9, and I’m hoping for a 28, but I’m not sure if I will get that. What do you think my chances are in getting into any of those aforementioned schools?

Global Politics was HL, I earned a 6+ in that forgot to mention that