I used to pray that God would make me a great athlete, and He never did.
Give your players something they can physically do - don't ask them to do something they can't do.
Without self-discipline, success is impossible, period.
Attitude determines how well you do it.
If you make a fist and hold it for two hours, you won't be able to pick up a glass because you'll be so weak. Let's stay loose. Let's have fun.
What you are capable of achieving is determined by your talent and ability. What you attempt to do is determined by your motivation. How well you do something is determined by your attitude.