my advice is to not study during your "free" time at school
this is your final year of high school, ENJOY IT!
make it times which you would look back and laugh at...times which you can talk about when you meet up with your old friends
don't be an anti-social nerd, not that studying during lunch implies you are...but just enjoy it while you can
lol personally i never did any homework....homework for me was done during the class...when the teacher is talking about last nights homework....that's when i do it
this isn't a very good habbit as i can personally tell you right now!
haha it's getting harder to get back into the habbit of actually doing work after school/uni, now that i'm in uni....