Always be ready to give your all
The most important thing when you walk out on to the pitch is to enjoy it, have fun with your friends and to give your all to win the game, if possible. It doesn't matter if you start the match or not. Your time will come. You just need to be ready to achieve your goals.
To make that happen you have to show the right attitude all season long. That means arriving on time, listening to your coach and following their instructions, warming up, being committed, playing the game fairly and, above all, not taking it out on a team-mate if they lose the ball, never giving up and not shrugging your shoulders if you lose the ball. What you do is go and win it back again. You can't leave anything to chance if you want to play your role in the team. Who's never misplaced a pass in their career? Not me! So if you don't have the head for playing a good game, here's some advice for you: stay at home!