Running a successful startup relies heavily on… happiness. At least that’s what Robert Knapp, Founder and CEO of CyberGhost VPN, has learnt as a serial entrepreneur who started his first venture at the age of 16, organizing punk rock concerts in the small German town he grew up in. He went on to grow the business to the point that he also organized festivals and one of the biggest open-air rock concerts in Germany. He was successful and he was passionate about his business. At the age of 19 or 20 years old, he already owned a large house and a Porsche. And yet, he found himself in a predicament: he wasn’t happy. He felt like something was missing.