[ Men's Health ] Open Question : I am very embarased about this!?

I am pee shy and i am very sad about it and it seams it only happens at school. I think it is because i am going to be hear with these kid every day that makes me not have to pee. it seams im not actually nurvous jest the urge to pee goes away and that is why i start to not need to pee. plz help me overcome my problem.