Althouh you are playing to win, this is still a game. Practice in no-stat games. Your first game of every day should be a no-stat comm practice. Try something new. Then go IC Exp, and find out why it's horrible.
Practice does make perfect.
Just look at Kev. Ok, bad example. Uderstand that you don't need to kill an enemy base to win. Never leave your team in the middle of a game. No matter how bad it gets, you owe it to your team to stick it out.