Teenage girls have to live with the simple fact that dress code is nonsense. You will observe simple, feminine and classic clothes that are suitable for you to go to school. First of all, wear a very long shirt! The most important thing is that you still keep the private area closed which is the right approach to using it.
If you can wear a junior top without sleeves in every way, make sure you wear a shoulder strap no less than a few broad sleeves that can cover one’s bra strap. Sometimes skirts or dresses are too short to look appropriate unless you wear leggings underneath. You also have to prevent all forms of junior shirts that can be lower.