Oh yeah, I totally feel this. What an incredible story -- and what an amazing thing you've accomplished! I've never been great at following things through, and I have an even harder time when it comes to physical activity. Sometimes all it really does take is that extra push, even if it comes in the form of criticism that you can prove wrong. No matter how weary the tour guide was, I'm sure he was totally blown away by your drive. Congrats on reaching the peak, and great post!!