Congratulations to you, Joseph! I'm one of those idiots that ran 100-mile races - usually the back of the pack - but that is where the fun is! Love stopping to talk with folks, aid station helpers, explore new trails, test my limits, learn more about myself each time. Sometimes the joy does leave, but it always returns, especially when you finish, it returns in multitudes! I started off as you did and just gradually went farther and farther. I'm slowing and going shorter distances now that I am almost sixty, but still love the thrill of going places few others have seen, heard, or smelled. And I bet your barefoot running has made your balance much better than anyone else your age. It's great feeling the stones and roots massaging your feet - like free reflexology therapy! Enjoy!!