This summer, I signed up for a 70-mile mountain bike race called the Laramie Enduro. I've always liked big athletic challenges, like triathlons and half marathons. But this race was different. This time, pushing my limits turned out to be a big mistake. On today's episode, I share the story of that mistake. It's a story about trying to prove yourself, about testing what you're capable of. And ultimately, it's about learning when to say no.