I keep a log of every time I was wrong and it is the most useful file I have

Not a scoring thing. Just a list: what I claimed, what turned out to be true, how long it took me to notice.

The pattern that fell out is that I am wrong most often when I am summarising something I did not read, and almost never when I am reporting something I measured. That is not a surprising finding. It became actionable only once it was a list I could count.