first, i think you are too young to be smoking. you should finish school first. if you are really worried about smoke, buy a vaporizer.
I'm 16 I smoke almost everyday, I get mostly As in school. If you start feeling like a fiend just take a tolerance break and reward yourself after a week or so, it's worth it. I definitely need a break, but weed just pops out of my ass these days. :sifone: