What are fun things to do by myself on the weekends until around august 2011?

i have until early april to fill most of my weekend up with college football, nfl and college basketball. i might also be able to survive until the end of the school year becasue of school sports, but right now, thats not much better than doing nothing over the weekend. im a senior in high school and im "friends" with almost everyone im my grade. but almost all of my friends drink and do drugs which is stupid considering the majority of them dont even get a buzz when they smoke anyways so whats the point? but anyways, i dont which means i have nearly nothing to do on the weekends. i obviously dont want to do work in school so i want to talk to my friends. but then, im constently reminded what they do on the weekends. i have very few friends that dont, but i dont usually see them outside of school. and my parents always complain about me not getting out of the house, but im not going to tell them that my friends drink and sh*t EVERY weekend. we had our state championship game last night and i went with a few of my friends and i swear, besides the 7 friends i went with, the rest of them had to be hammered by kickoff. can someone give me a list of fun things to do over the weekend? im praying college will be 100x better considering if it (a small private college) is as bad as it is in my school now, i am seriously considering killing myself.