From selling garbage bags to billionaire: Mark Cuban’s formula for success

Mark Cuban, billionaire entrepreneur and investor, has long emphasised that investing in yourself is the ultimate competitive advantage. Cuban attributes his success to this simple yet profound principle, which has a corollary – continuous self-improvement. For Cuban, with a net worth estimated by Forbes at $5.7 billion (May 2025) it isn't just a good idea — it’s a strategic necessity.Most people know Cuban, 66, for his bold, almost theatrical business style. .Since joining Shark Tank in 2011, he has become one of its most influential “sharks”, investing in numerous startups and offering strategic mentorship, helping shape the show’s success and empowering aspiring entrepreneurs across industries.He emphasises that investing in oneself and continuously improving oneself is the most valuable investment one can make.In an interview with Men’s Health, Cuban shared his journey of self-education:“Some of the best investments I ever made were investing in myself, first and foremost. When you’re first starting — you may or may not have a job, you don’t have any money, you’re [uncertain] about your career. What I learned early on is that if I put in the effort, I can learn almost anything.”He elaborated on how dedicating time to learning new skills, such as programming, paid dividends throughout his life. This commitment to self-education allowed him to adapt and thrive in various industries.In an interview with Wired, he expounded on the key habits toward success:Read.Be curious.Be agile.ABS - Always be selling.“Everything goes down to sales, no matter what,” says Cuban..Where to focus.Cuban also advises against the common mantra of “follow your passion”. Instead, he suggests focusing on where you put your effort:“Don’t follow your passions, follow your effort. It will lead you to your passions and to success, however you define it.” This perspective encourages individuals to invest time and energy into developing skills, which can lead to discovering genuine passions and achieving success.Furthermore, Cuban stresses the importance of curiosity and continuous learning. He believes that staying curious and open to new information – being agile – is crucial for personal and professional growth. In his advice to his children, he emphasises being curious as a key to success.In a conversation with LinkedIn CEO Ryan Roslansky, Cuban highlighted three tips for success: Remember you’re getting paid to learn: Embrace every opportunity as a learning experience. Reduce the stress of people around you: Being a source of calm and support makes you invaluable in any team.Know that you don’t have to have all the answers: Staying curious and adaptable allows you to navigate challenges effectively.Cuban’s approach underscores that success is not solely about innate talent or luck but about the consistent effort to learn and grow. By investing in oneself, staying curious, and focusing on effort, individuals can pave their path to success..Who is Mark Cuban?.Raised in Mt. Lebanon, Pennsylvania, Cuban showed early business talent by selling garbage bags at 12. He took college classes in high school and later transferred to Indiana University. After a stint at Mellon Bank, he moved to Texas and started MicroSolutions, which he sold for $6 million. In 1995, he cofounded Broadcast.com, sold to Yahoo! for $5.7 billion in 1999. A billionaire, Cuban invested widely, cofounded 2929 Entertainment, Cost Plus Drugs, Broadcast.com, Truly Indie, HDNet Fights, HDNet Movies, and joined Shark Tank in 2011. He bought the NBA’s Dallas Mavericks in 2000, transforming the team into champions and gaining fame as a bold, generous owner.