To get a starting position, you will have to seize every opportunity presented to you during matches. Even if it's only for a few minutes, make sure you make the most out of the time you spend on the field. You don't necessarily have to make a huge impact or bring home the victory for your team, but let your coach see how much you want it. Your confidence in your position and your drive should be beyond reproach. The rest will come naturally: with a bit of luck, your fresh outlook and technical skills will help your team get the upper hand at the end of the match!
This is when you'll start getting more and more playing time and become essential in the eyes of your team and, most importantly, your coach! So now it's up to you to show your chops and take on the hardest position: a starting position.