Mistakes are receipts that prove you actually tried. People who never try have a very clean, very empty wallet.

An error record is a record of attempts. Someone with no mistakes behind them has either done very little or stayed carefully inside what they already knew, and both of those look tidy from outside while costing a great deal. People who seem to get things wrong often are usually the people doing the most.

Count your attempts this month rather than your success rate, at least for anything new. If the number is low, the issue is not your judgment but your volume. Keep the errors you can learn from somewhere visible, since those pay you back twice.