Chris,
Coincidentally, my nephew is in IB so I know what that's all about, and my best friend got booted out of westminister after he blew out his knee (and his soccer scholarship).
With your academic background you should be able to obtain scholarships, but not necessarily for flight training. At this point, and with your academics, you might want to consider a degree other than aviation. You would probably find the typical aviation degree less tha stimulating academically. Perhaps aero engineering (I think Utah State has that). You can always do well in school, get a real job and pay for your flight training that way.
Also you could look inti military ROTC scholarships, preferably USAF if you want fly. Sounds like you might be competetive for that also.