Tonight my little sister rips my skirt off outside of my high school at a bball game?

all the guys are around, and im not wearing shorts under my skirt. Get the picture? To top it off, my undies have little unicorns on them. It was probably my most embarring moment and of course i was made fun of for what i was wearing under my skirt. Is it ok that i still wear such girly underwear with pictures on them? Do any other high school girls still wear underwear like this and what kind of pictures or prints do u have just to make me feel like im not a huge loser.