Kay. First thing you need to know...
GAMING DURING SCHOOL WILL NOT WORK.
If you are going to game at school, it has to be with chicks in your clique/at your social level, otherwise you will get cut down. The AMOGs hang in packs of 4 or more, and will normally be the ones who go out, get drunk and get into fights, and this (for whatever reason) makes it easier for them to pull girls. I didn't bother in high school, I wasn't at the top of the popularity pole. I just went to parties where the AMOGs weren't going and it was hell easy to pick up there

.
But the popular/cool/whatever you want to call them kids in high school will generally end up bagging your groceries, the odd one or two will do something with their lives, the rest will just waste theirs on the bottom rung of society. While you fuck their ex's.
Never bother with actually trying to game chicks. You have, what, 40 minute lunch break? You can chat them up and
kino a LITTLE, but it's all really a set up for when you hook up with them OUT of school. I never kissed a girl at school, aside from the cheek. Too much gossip. Thats another thing, gossip will spread like bacteria. You fuck someone on Saturday night, guaranteed half of your year group will know about it Monday morning. Even private things can be betrayed, so be careful.
Just focus on becoming friends with whoever suits you, it's not absolutely imperative that you pick up at high school, so just enjoy it. Remember, any girl you can make easy FRIENDS with at school, you can pick up on a weekend. It's just whether it's worth it or not.