Performance = +/- Attitude * Effort * Skill
Positive Performance require Positive Attitude. You are always in control of your Level of Effort. You can practice and train to improve your Skills.
Confidence breeds excellence.
When you plan to win and prepare to win, then you can expect to win. - Zig Ziglar
Allocate your time accordingly:
60% Planning to win
30% Preparing to win
10% Expecting to win
Align your environment for optimal arousal.