Kevin O'Leary might be worth hundreds of millions today, but the investor and “Shark Tank” star says his success was built on some serious setbacks. Failure, Then Freedom In a recent post on X, O’Leary said he wouldn't change anything about his past, not even the parts that went terribly wrong. “I wouldn’t have changed anything. I wouldn’t give him advice to do anything other than what he did, because it was the failures that led to the successes,” he said when asked what he would tell his 25-year-old se ...