I have a power word that I use-when I qualified for the Olympics in 2008, it was fighter. That way when I'm in the race and I get to those dark moments, I can think of the word and it evokes that emotion for me.

Don't try to rush progress. Remember -- a step forward, no matter how small, is a step in the right direction. Keep believing.

Never underestimate the power that one good workout can have on your mind. Keeping the dream alive is half the battle.

Progress is rarely a straight line. There are always bumps in the road, but you can make the choice to keep looking ahead.

Once you make the decision that you will not fail, the heart and the body will follow.

Set small goals along the way and don't be overwhelmed by the process.

Acknowledge all of your small victories. They will eventually add up to something great.