One of the life lessons you can learn from sports is turning failure into gains. Even though we might seam to have our life together everyone fails. Even professionals lose games to. One bad practise can turn into many bad games. When this happens you just have to get back up again and try. All you have to do is keep practising and you should be able to turn your failer into lots and lots of success.
The second life lessen is knowing that theres more to life then this game. When you are playing on a sports team I know it feels like your whole world revolves