It’s easy to look at successful people and envy their situation. What you often don’t see is the pain they went through to get there. I’ve made lots of mistakes. In fact, I’ve actually been fired from three jobs. Here’s what I learned.

It’s never a good idea to criticize your boss in public. It’s an even worse idea to talk about him or her to the media. If you do, don’t be surprised if you get fired. You were asking for it.