Each day before school, I'm going to give you a quick tip! If you can't bring a water bottle to school, drink a huge glass of water before you leave! For most people, it makes sure you aren't thirsty for a while and who cares if you have to go to the bathroom during school! But, if you have a limit on how many times you can go to the bathroom like us and can't bring a water bottle, only drink a little in the morning and maybe get a little more from water fountains in your school. Hope this helped and have a good day at school! ;D