Can my high school stifle my religious beliefs?

For my english class we have to do a form of rebellion against a certain thing. I personally dislike organized religion with all of their beliefs and customs. My form of rebellion will be to wear a hat for one day in school which is not allowed except for religious reasons. I will claim that the hat must be warn based on my religion and personal beliefs. Since they cannot prove these feelings to be false or my religion would they have a legal right to tell me to take off my hat. If muslims and jews can wear religious clothing i feel that my religion if only an act of rebellion should be allowed as well. Who is to say whose beliefs are right or real?