I guess you should try and learn from both, but in general we pay more attention to the successes than the failures. As an extreme example, a lottery winner sh

I guess you should try and learn from both, but in general we pay more attention to the successes than the failures. As an extreme example, a lottery winner should say "you should play the lottery, it made me rich!" ignoring all of those who made an overall loss. Think of it like the housing crash, everybody knew somebody who was getting rich from property.