Hey, I go to school with the intent of being an aerospace engineer. Aersospace engineering isn't an accredited college major, but an alternative is to major in either electrical or mechanical engineering at a university that offers aerospace courses. I attend the University of Vermont and they do a lot with aerospace, and I know that Ohio Northern and WPI also offer great courses as well.
Also to help, you may want to look into getting an internship at an aerospace company. I've been working at Hamilton Sundstrand in the past along with this whole summer, and I can't tell you how great of an experience it is. I learn more about engineering doing hands on work there, than I do at school. Feel free to pm me if you have any other questions.