Oh okay. I'm going to university at the end of September. I took a year out after college and now here I am. College in the UK is like 2 years after secondary school, then I go to Uni, which is college for you... Just to clear any confusion!
Eh, don't worry about blowing it. Every day in school I wasted. I don't even go to school anymore. Homeschooled. Working on getting my GED, getting a job to save for college money, and then go from there.
Highschool is essentially pointless unless you get a scholarship to college.