A computer will undoubtedly be a part of your daily life (try as I might to avoid it while you are young), but my advice for today is to make sure to learn to type. And I mean really learn to type - with all your fingers and without looking, etc. It's extremely useful in school work and certainly your "real job" later in life. Coming from a time when as a kid most people did not have computers at home, I learned later in school through many timed tests of the aforementioned sentence. I hope they still teach you this in school, and if not, Mommy will.
All my love,