Make a list of your accomplishments. Refer to it whenever you need a boost.
Soccer Athlete Success Evaluation (S.A.S.E.)
It takes more than quick feet to succeed in soccer. A player must be both physically and mentally tough.Take this Test
"You haven't lost your smile at all, it's right under your nose. You just forgot it was there."
Don't try to be perfect. Accept that you are human, and forgive yourself for making mistakes.