I love seeing my confidence grow every single day.

Find something you agonised over two years ago — an email drafted six times, a phone call rehearsed in the car. Read it now. The thing that cost you an entire evening reads like nothing at all.

That is the only reliable instrument for measuring confidence. Not how you feel today, which moves hourly, but what has quietly dropped off the list of things that frighten you.

Seeing it requires looking backwards on purpose. The growth is daily and the visibility is annual, which is why so many people are convinced they haven't changed.