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

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.

In the end I have to hold myself accountable...I had to make a change if I really wanted to reach the goals I had set for myself. I had to get out of being comfortable and get into a situation that was going to really push me.

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

Don't be ashamed or embarrassed to dream big. You're living your life with hope, that's a powerful thing.

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

Running has always been a relief and a sanctuary—something that makes me feel good, both physically and mentally. For me it's not so much about the health benefits. Those are great, but I believe that the best thing about running is the joy it brings to life.