You can learn the game or you can follow a simple strategy.
I basically put it on the shortest time span (5 minutes) and easiest difficulty and turn on PKs, if you can score in that time, great.
If you don't score in that 10 minutes you'll go to PKs, 5 kicks for each time. To kick you just want to hold a direction (down and left or down and right is better than up) and kick the ball with a good amount of strength. Move your goalie a bit, he'll auto dive to try to block.
I'm sure if you play the tutorials an all this might be a bit easier but it's a pretty simple challenge even with out that.