I almost burned down my dorm
How did you almost burn down your dorm?
I didn't do it, but I thought about doing it because the teachers at my school are so mean.
Setting your dorm on fire is arson, and even just thinking about it is dangerous. Go to your administrator in regards to the teachers, rather than trying to exact revenge on the school.
The administrators won't do anything to help me. Getting back at the teachers is the only way to get even.
Burning down a building and injuring people is not a way to solve your problems. Talk to the administrators and someone that's an advocate that can advise you how to deal with the problem. Getting even with people that you think have wronged you is not appropriate.