Failures
Errors & what you learn from them
Failure is one of the most efficient teachers you will encounter, but only if you actually sit with it long enough to learn something.
Every professional has a history of things that went wrong: projects that did not land, roles that were not a fit, bets that did not pay off, conversations that damaged something important. Most people move past these as quickly as possible, which is understandable but also means leaving a lot of learning on the table.
The useful question after a failure is not only what went wrong but what you were assuming that turned out to be false. Those assumptions are the real material. They reveal how you were thinking, what you were optimizing for, and what you did not know you did not know. Getting specific about that is more useful than a general sense that something went badly.
There is also a difference between failures that were genuinely yours and ones that resulted from circumstances outside your control. Both are worth understanding, but they call for different responses. Internalizing failures that were not really yours is as unhelpful as refusing to take responsibility for the ones that were.