Well you need to quit drinking fluids. The fluid intake is in direct proportion to the sweating if you don't drink anything you can't sweat. Problem solved.
Second option cycle to school naked arrive early and rest letting the nice air dry you then get dressed and go on to class.
See what you have learned from being here. You can't get this kind of knowledge anywhere else. Hope you like it here and if you have any problems feel free to ask we can solve the deficit, the healthcare problem, and the meaning of life.