If you understand how the mind works, there is no actual limit to what you can do...

"I made an app for my girlfriend to help her pass her driver's test. When I uploaded it to the App Store, I imagined that she'd be the only one interested but 36,000 people downloaded it the first day. It's been downloaded over 7 million times now. It generated a lot of interest. I never expected to be in front of 800 people talking about it, or to be interviewed by television channels. I was a nerd — a developer who spent all of his time behind the computer. I realized then that I didn't have the people skills necessary for all of it, so I decided to do a year-long leadership course. And it was so, so helpful. The course ended with a fire-walk. The idea was that with the right mindset, you can achieve anything. So we actually walked across hot coals, chanting, "Ice, ice, ice." And it worked! With just the power of my mind, I can walk across a thousand degree fire without burning myself. Since that course, I've conquered so many fears. Right now, I'm following Wim Hof's cold shower protocol. And I swear it's made me so much happier and more focused. I wouldn't have tried that before, because I had a fear of cold water. I know now that if you understand how the mind works, there is no actual limit to what you can do. Since then, I've created another SaaS, and I've even moved to Dublin. I'm not like I used to be."