The key word is qualifications. The days of the bedroom programmer making hit games are pretty much over.
Mainstream games developers employ big teams, and are pretty choosy about who they employ. I remember when I left university and was looking at the job market, Codemasters were only interested in graduates who received first class degrees in Computing or Physics from university. Then you could start on their training course. Too bad my physics degree was only a second class!
My advice - work hard in school, get good grades, go to university. In the mean time, get into Dark Basic as a hobby so you've got a good foundation for later studies.