You TRUST people way to easily. Not everyone is nice or amazing. You're gonna REGRET it someday!:
Support and encourage your teammates at all times. All of us make mistakes at times and they are not done on purpose. Encourage your teammates to be the best they can be. Play as hard as you can in practice and in games. Never be beaten because of lack of effort. Even opponents who are bigger or more skilled than you can. Show RESPECT to your Teammates, Goodluck and Have fun!