When I finally arrived in the U.S. for my Olympic training, I saw a beautiful stadium in front of me. I was ready and excited to start my warmup. Then suddenly I got confused, wondering how many laps I was supposed to run. I froze from the realization that I was one of the top javelin throwers in the world but had no idea how to do a warmup. I was good at taking direction, but now I was half a world away from my coach.