I'm assuming you're under 18.
Get'cho head straight gurl. There is no sense in making all these bad choices. There is no point in breaking into somewhere you're not supposed to be. And there is definitly no reason the get busted at school. I'm not saying it's wrong to bring your stash, because I did everyday in highschool, and a burn before and after school is very necessary for some folks, but cheeseandrice don't sell weed in school or even whip it out for that matter. Nothing good can come of it.

If you are a minor man serious getcha mind right like right fucking now and if you're lucky you might have a clean slate once you become an adult. Seriously consider becoming an adult too.