This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page. Embed Code Restart Playing WATCH MORE VIDEOS FROM THIS EPISODE > Oprah Winfrey once said that a mentor is someone who teaches you to see the hope inside yourself. Actress Heather Hemmens shares that having a mentor and now being a mentor for Big Brothers Big Sisters has been lifechanging. ShareTweet