Are you starting freshman year of high school, or freshman year of university?
If you are still a freshman in high school, then you have a lot of time before you think about universities.
Your might however want to read the “applying sideways” blog on the MIT admissions web site. As I understand it, it recommends that you do what is right for you, and do it very well. To me it sounds as if this is exactly the approach that you are already taking.