What happened? You got off to such a great start, but you’re suddenly feeling tired. Don’t be surprised if your huge lead slows back down to a walking pace. Now that you’ve had your fun, another person gets a chance. Crossing the finish line is what’s important, not finishing first. The promise that you made to yourself is still good. You just don’t have the energy to be “on” all the time. You should be proud of your effort.