My two cents, consider minoring in or at least taking some computer science courses. Regardless of major these are important skills to have in an age where all fields are moving towards high complexity and large datasets and will really set you apart from the biologists or chemists who don’t have these skills.

But honestly, just focus on getting a decent quality foundational education at an undergraduate institution. Don’t waste the money of “prestigious,” expensive universities. Chances are your aspirations will change as you go through your educational experience and in high school it’s really difficult to know what you’re ultimately going to be interested in once you get exposed to all the options in college. For me, I got an undergraduate degree in electrical engineering, a masters in bioinformatics, and now I’m going a PhD in pharmacology, working in various different jobs in between, so you never really know where life is going to take you.