you think your parents want to spend 68 THOUSAND dollars for you to not get a diploma? im sure they would have much rather had a couple of sick cars or a really nice vacation than a derelict son with a part time seasonal job.
school is basically prison to everybody, no one likes it, everyone else just bites their tongue and endures it because you need to. i went to a private highschool myself, and it sucked. i had 1 friend, shitty grades, couldnt ski, had SATURDAY CLASSES (you think your school sucks?), and by the end of my senior year i was severely depressed. what did i do? i told myself thats its a matter of months, just do everything you have to for damn good grades and a successful finale. i worked my ass off for the first time, and i felt so much better. my parents were pleased with me, my teachers were pleased with me, other kids started talking to me, and i felt so much better about myself. by the last couple of weeks, i actually liked my school.
so my recommendation to you: dont drop out, obviously. make everyone super proud from now until the end of the year because its not that long, you can do it. after you graduate, take a gap year and go work for a park crew and pursue that passion. after that go to college, because if you find the right place you can still ski 3 days a week, meet some of the coolest people, and get a real degree. and no matter what anyone tells you on NS or elsewhere, YOU NEED A DEGREE TO FIND A DECENT CAREER. yes it can be done without, but that is rare and laborious, and means you miss out on college.