Um, major in physics when you get to college? Seriously there's not much you can do when you're in high school except perhaps studying introductory college physics in advance.
Physics major would be the way to go for that. In the mean time - take a strong college prep load. Big focus on math, take physics if it's offered, other sciences and especially chemistry can help you develop good skills and ways of thinking that will help you have an easier time later. Writing and speaking skills are very important and often overlooked.