If you want to pray in school, do it. If you want to read the Bible, do it. If you want to talk about God in school, do it. It's your choice, no one should be allowed to make the choices for you. It's our choice and we should be able to live with our own consequences, not somebody else's.
School is just a building that we use for learning, they cannot control the choices we make. As long as we have breath, we should be allowed to make our own choices. If someone doesn't agree with your choice, or if you don't agree with mine, so what. Don't make a big fuss about it and don't try to take my rights away just because you find it offensive. Who gave you the right to control how I live my life? I don't try and control yours. Let us live our own life and let us deal with our own consequences.
So if you want to pray in school, do it. There's no harm to it, nobody's getting hurt. Nobody gets a broken nose if someone prays. Besides, praying in school is a lot safer than guns in school, don't you think?