Self-made millionaire Arianna Huffington shares the No. 1 thing you need to do to be successful

Huffington launched her namesake media company in May 2005, and when she sold it in 2013 to AOL for $315 million, she still owned about 6.6 percent of the company, leaving her with $21 million. She stepped down from her role running the Huffington Post to launch her...