It is great that you are thinking ahead, but remember to be flexible. I thought I knew exactly what I wanted to be when I was 17, and I am in a very different career field now. I didn't jump around too often, but being flexible and embracing change in direction as I started my career very much helped me in the long run. Ensure you are learning "the basics" - finance, economics, accounting.... plus some science and liberal arts. While you are learning the fundamentals, those subjects that are relevant to every career, dig into things that interest you, and see if you can put those together. I have technology and finance in my background. Having both of those pieces really helps me do my job well.