dresscode

so today i went to school as normal and i was wearing a black pleated skirt that i've worn multiple times to school with a white long sleeve and thigh high socks with my new platforms . I GOT DRESSCODED. which is ridiculous because not only have i worn it before this kid had white tight shorts with red underwear ( you could see through the shorts ) but he wasn't told anything. i was so excited because i felt pretty but then they made a big deal about it. i ended up going to the office and i called my mom to ask her to bring me a dress instead and she did thankfully. but while i was in the office this lady told me im not allowed to be on my phone in the office?? so if i can't use my phone how to i tell my mom what to get me? like ?? i don't understand lol i can't communicate to her telepathically. what also upsets me is that there are other people who wear more reveling clothes and don't get told anything. this e-girl was wearing a seethrough mesh type shirt with a small ass skirt and they didn't tell her anything!!! my best friend has shorter skirts than me along with red hair but no one tells her anything. i- idk lol i don't understand. sorry for the rant i was just annoyed. everyone have good day <33 xD