The pressure is hard. You get - the world is only watching every four years, and I think lots of people feel like they have to win in that time frame.

I don't have a sprinter's body.

My mom always has this amazing ability to always see the best in a situation. In that moment [when finished 2nd in the 200 meter race in the 2008 Olympic games] I was just completely devastated. I mean, I had worked so hard; that was my opportunity. And she was just able to turn it around for me. She helped me to be able to see the other side of things and that this is not the end for me. She's just an amazing supporter and an encouraging person and she has a unique ability to do that. And so those are the kind of things she said to me in that moment and over the next four years. When things get tough, she's always been my strength.

When I was younger, Jackie Joyner-Kersee was a mentor to me and gave me great advice. The best was to 'work 100 percent, but enjoy every moment along the way.' Sometimes you get so in the zone, you forget to enjoy your passions. I love running—but I also love the movies, relaxing on the beach, shopping and spending time with my friends. Enjoying my life helps me enjoy my running.

There are moments that aren't great. And I think it's amazing for people to be able to have some insight, to be able to see the support system and what really happens.

I definitely think I put more pressure on myself. I can be hard on myself and super-critical and very rarely satisfied or happy. I am my biggest critic.

I had worked so hard; that was my opportunity. And my mom was just able to turn it around for me. She helped me to be able to see the other side of things and that this is not the end for me.