My Future Profession (Computer Programmer)

Many people walk in the footsteps of their parents or grandparents, but to me is not the case. My mother - a saleswoman, and her father - electrician. But I do not want to be resellers or electrician.
My favorite subjects in college - mathematics, physics, and, of course, programming. I'm not interested in subjects such as geography, biology or chemistry. My hobby - computer games and programming.
I have a computer at home and I can spend hours working on it. On a computer is much easier to do things, for example, to write essays.