Cool, I will just simply tell you my opinion, in the end it is you who should make the decision, for me school is for people who don't have imagination and courage to learn by themselves. But in early age and with lack of experience it is easy to get carried away and take the wrong direction.
If you already found your passion and you are sure that whatever is it, it is what you want to do for next few years of your life. Take the 6 months off and go explore in that direction and see what you get. Otherwise if you are not sure yet, stay in school and try to find what you like to do, you still have long way and if the next 6 months are not them, be patient sooner or later you will find what you like to do. Then everything is going to be clear.
Explore and try to meet people and talk to them whether in school or off school.
If you already found your passion and you are sure that whatever is it, it is what you want to do for next few years of your life. Take the 6 months off and go explore in that direction and see what you get. Otherwise if you are not sure yet, stay in school and try to find what you like to do, you still have long way and if the next 6 months are not them, be patient sooner or later you will find what you like to do. Then everything is going to be clear.
Explore and try to meet people and talk to them whether in school or off school.
Check this video: http://www.youtube.com/watch?v=D1R-jKKp3NA
Good Luck.