Get a feedback loop and listen to it. Your feedback loop can be this dorky spreadsheet thing I did, or it can just be one great man who tells you what you need to hear. The hard part is the listening to it. Anybody can get chewed out. It’s the rare person who says, oh my god, you were right. As opposed to, no wait, the real reason is. . . We’ve all heard that. When people give you feedback, cherish it and use it.