Experienced Soccer Goalies advice?

Im 13 and I play for the Jr. Pioneers In M.A. I have been playing soccer since i was 10 because of my height and strength I have been able to out play other players and goalies. I love playing soccer but for the last 2 weeks I have had terrible games. I played in a tournament in C.T. I thought i was going to do great and i did but my team brought me down. My coach wanted to play 2-1-3. So when the other team was attacking the wings had to come back and support the defense but they weren't. So what would end up happening is the last 2 defenders would step to the ball. well one of them would step the ball opening up the middle making it 3v1. So the last defender would get beat and it would be my problem to take care of this. I stoped every shot i could. 10 shots on break aways leading to 3 gaols. And im yelling at my wings to come back and support but they don't they just stare at me . CORNER kick after the 11 shot the wings come back and SUPPORT. He looks at the ball and watches a fwd shoot on me i save it i gave up and walked out of net and let the other team score. I have always reacted on ins tics and i never gave up before. And to tell the truth it sucks letting your team down. I just don`t don't know why i gave up and i don't ever want to give up again exspacilly when next week i have a tournament in NYC with the U14 team. And i don't want to give up again on a team that i don`t know that well. I don`t want to blame the players on my team because together we are a family. Can some one give me advice or how they delt with this situation