How to help heatstroke?

Okay so I'm pretty fit and am stronger physically and mentally than most of my friends but I've been on vacation while this conditioning camp was going on and I just came back halfway through to do the camp. Being more tired than everybody else is a given but is there a way I can help with my overheating? I drink enough water but not too much so I don't throw up. O yea and please dont suggest a break b/c they never allow us to sit on our butts and just chill. Btw I'm in the Texas summer heat at 10-11 outside which is about like 97�. Any suggestions would be great :)