Dude -
Neurosurgeons are intelligent people. They've been intelligent, mostly.
a 1300 SAT means you are pretty good, but not the best of the best.
it's okay, it doesn't mean you'll never be good enough, but if you progress at that rate, you will be unlikely to do well enough to attain something that competitive
SATs? You are still a kid, enjoy being a kid. But college; make changes, do well, get into med school, do well there too, and then become a neurosurgeon.
It's great you want neurosurgery, don't give up your dream, but realize that a 1300 student translated to a situation where you should be thinking of applying - forget it.
Sorry, this post is harsh, and maybe a bit too blunt. Enjoy being a kid, but start doing better on your exams. SATs won't hurt you at all, but improve your ethic, and i'm sure you can do well enough to get here.
Bad MCATs - no med school; no med school, no brain surgeon.
marginal MCATs, DO school/caribbean --> neurosurgery extremely difficult
Good MCATs - good med school -- good boards -- neurosurgery