>>10056858
Firstly, post in the larp thread newfag.
Secondly, if you haven't been to a larp you have no business writing one. Even most people who have been to a larp will suck at writing them. Before you try to write this game, do some research into other magical school games. Read as many systems and rulesets as you can and attend at least one. Magischola is a well-regarded magical school larp, for example. I think there's one in the US as well? At least go to some local larp events even if they're not the sort of thing you want to run; maybe even volunteer on a ref team or two to get some experience.
Third, some general advice: Writing a game isn't the only part of running a larp. You also have to deal with booking a site, making sure all safety precautions appropriate, providing kit for monsters and NPCs, liaising with players, feeding however many people for however long you run the game... There are so many logistics in running a larp, it's a lot of very hard work. Make sure you assemble a competent (and experienced if possible) ref team and DELEGATE. Do not try to do everything yourself. Be prepared to hear a lot of criticism and make sure you take it to improve your game - there's nothing worse than a game runner or head ref with a "vision" they refuse to adapt. Plots do not often survive contact with players, you should have a plot but be ready to adapt it and change it accordingly based on what your players do and where you want them to end up.
Fourth, consider running a tabletop rpg instead. You will be able to do that yourself without much difficulty, there are many tabletop systems already written that can cater to this kind of game, and you can play with a small group of friends in a more concentrated way where you won't need to worry about logistical things. You can even dress up to play if costuming is important to you.