[Kiwi_queen]

I think that, like R81 Honda said, the best way to prevent stress is to be prepared before you even go out there. - know what your robot's strengths and weaknesses are, try to imagine every game plan you can, and try to think of ways you can salvage the game if one of your bot's weaknesses is revealed.

also, don't think of competition as a "do or die" situation - think of it as an "I hope I win, but the important thing is that I'm having fun" situation. if you make winning your first priorety, you'll more than likely stress out over every little thing and end up losing more than you win (not to mention it won't be fun anymore). but if you chose to accept the fact that you probably won't win every match, but that you'll do your best to try, you'll have fun, and your stress-level will go down, which will allow you to think more clearly and have a better shot at winning.