3. Plan for Setbacks
If you're a marathon runner, there are times when you'll hit the wall. If you're a golfer, you'll make a bad shot sometimes. These things happen. What really matters is what you do afterwards.
"One of the things that separates elite athletes is their ability to hold up after a setback," says Corb. "They don't spiral out of control."
Again, this isn't just about your personality -- it's a skill you can learn. How can you regain your focus when things go wrong? "You need to practice techniques to re-center yourself," Corb says.
There's no one way to do it. Some athletes have a ritualized physical routine -- like a specific sequence of stretches. Others have a specific phrase that they repeat to themselves. Some play a specific song -- in their heads if they can't turn on their iPod. Others will take 30 seconds to do deep breathing.
The point is to know what to do when the pressure mounts. Having a plan in place -- even if it's as simple as a word you repeat to yourself -- will boost your confidence.
4. Manage Stress
Feeling stressed before a competition? Try techniques like meditation or progressive muscle relaxation -- in which you consciously relax each muscle group, from your toes to your head.
Of course, channeled the right way, stress can be your ally right before an athletic performance.
"Not all stress is bad," says Geier. "The fight or flight response can push you harder during an athletic competition."
The difference is how you experience these effects. If excitement before a competition gets you amped up, that's good. If it's tipping you into panic, that's bad. Remember that when you feel stress building, you have some control over how to interpret it.
5. Sleep More
Not only does sleep help athletes physically -- allowing your body time to repair itself after a workout -- but it also has mental benefits. Studies have shown that getting enough sleep can improve reaction time and split second decision making.
How much sleep do you need? Aim for at least seven to nine hours -- and more if you're under a lot of stress or doing intense workouts.