Simone Manuel made history at the 2016 Rio Olympics as the first African-American woman to win an Olympic gold in an individual swimming event. But there were many difficult moments leading up to that incredible one.
"There were many moments that I had doubts about whether I was doing the right sport — if this was for me," Manuel said.
"I always looked around and realized that there weren't many people who looked like myself when I was younger," she said. "But I just stuck with it because it was what I loved to do."