Replying to what to do about school?

im in 7th grade and as some of u may remember or are in, its sort of like a somewhat pointless year in all the education years combined... my parents just slapped on me sayin that if i get a c on my report card i cant ski... and right now im destined for one with school ending june 22... i fuckin try my hardest in school and i used to be mad smart at the starting of this year... what can i do to help my parents recognize that skiing is my fuckin life... ill work on the school thing, but do u have any advice or help of any sort?
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'u see the thing i luv about extreme sports, is if u make the trick ur going for its sick, if not its hilarious!' ~brad~