I first became millionaire 20 years ago, during the dotcom, through the stock options I was granted in a hot tech company. and then I lost all of it because I didn't exercise and the stock fell > 90%. I wished I had known Buffett then. If I had listened to the annual meeting in 1999, I would have exercised my options, sold all of them and bought BRK. Then I would have called myself a "MULTI-millionaire" :) My wife liked to say that I would be so much richer if she had met me earlier (she would ask me to sell the stocks and we would bought a house at San Jose CA)
on the other hand, if I hadn't lost my millions in the year 2000, I wouldn't have read so much about the stock market and finance, and then eventually learned about Mr. Buffett. I learned from Mr. Buffett not only about the stock market, I also learned how to be a much better person.