There are two ways to accumulate twenty years of experience: twenty years of learning, or one year of experience repeated twenty times.
The difference isn't in what happens to you. It's in what you do with what happens to you.
The permanent learner has an active interest in learning and growing, personally and professionally, from their own experience. It's the engine of what we call vertical development: not accumulating more knowledge, but transforming the structure you look from. And it has one telltale trait: the relationship with error. The learner asks what this is teaching them; the one who already knows looks for someone to blame.
What covers it is sometimes laziness, but more often the arrogance of already knowing, mixed with self-protection. And here lies a cruel trap: the more successful you've been, the stronger the cover. Your track record gives you reasons not to question yourself. Every past success can become an argument against future learning. That's why there are brilliant executives repeating the same mistakes under different names: the same conflict with similar profiles, the same failed hire, the same clash with every board. The names change; the pattern doesn't.
The exception is in your history too: that time you took a piece of feedback that hurt, let it breathe for a few days, and actually changed something. What made it possible? Perhaps it came from someone you couldn't dismiss. Perhaps it caught you with your guard down. Perhaps you were more tired of repeating yourself than afraid of changing. The work is not needing perfect conditions in order to learn.
The small experiment: at the end of this week, take ten minutes with one question about your hardest current situation: «what is my contribution to this problem?». Not everyone else's; yours. Write it down. If you can't find any, be suspicious: nobody holds one hundred percent of the reason in a conflict that lasts. Often not even ninety.
When this competency grows, everything else accelerates, because it's the competency that develops the others. A leader who learns from experience improves on his own; one who doesn't needs reality to shout at him, or hit him, louder every time.
What is this teaching me about myself? It's one of the most fertile questions in leadership. And one of the least asked.