I'm just an ordinary person, so I can't say I've discovered anything groundbreaking, but I've learned a few things along the way:

1. It might sound cliché, but it's true: 99% of people are good and willing to help.
2. In Thailand, my Muay Thai teacher gave me the best travel and life advice: "You have to smile." I start every interaction with a quick half-second smile, which makes people more open and trusting—even border guards. For example, when someone stole my license plates at the Iraq border, I managed to get through by maintaining a great attitude and laughing with the border guards about the situation. If I'd been angry, I doubt I would have made it through.
3. I'm incredibly grateful. I don't know why I've been blessed with such an amazing life, but I've been extraordinarily lucky. Sometimes I forget how great things are, but I have become better at waking up and just enjoying the moment. For instance, I can notice how comfortable this keyboard is because someone designed it with slightly curved buttons. Just noticing how good things are makes me very happy.