What the 1st amendment means to me?

The first amendment is basically the right for freedom and pretty much everything. In english class we're discussing a lot about freedom and the american dream and for my essay I wrote that there is no existance of the american dream so therefore there is not a real existance of freedom. The 1st amendment does not hold much importance to the school it seems because we have no freedom. We cannot use our phones but only 40 minutes in the day, can't dress the way we want, can't act or talk the way we want. the limitations in school are quite narrow. It seems that although it's a freedom to do so much, it still has many restrictions. The 1st amendment does have a lot of meaning but I feel that not everyone gives you those rights that are supposedly given to us as Americans. Because this school sure doesn't and there's so many laws to restrict every little thing a minor can do. A minor has curfew because of the law and a minor cannot drive anyone under 25 in a car until they're 18. I don't think that age should have anything to do with your maturity level and we shouldn't have to be held with more restrictions just because of it. I wish that we had a lot more freedom especially when it comes to school because I feel we're being suffocated because we're not allowed to truly express who we are at/during school since of all these rules.