Most people tend to underestimate themselves excessively. Many say, “Humility is the virtue,” perhaps influenced by social environment and education, but it’s more about recognizing mistakes and limitations than about one’s own potential. That is, self-judgment based on experience. Of course, there will be mistakes and limitations in the future that we haven’t yet encountered, but the possibilities and achievements will be just as numerous. If we assume the odds are about equal, then we shouldn’t need to underrate ourselves. Excessive self-confidence or showiness is a problem, but so is underconfidence. Too much or too little is called arrogance. In Christianity, it’s considered “sin.” - Joseph’s “just my thoughts”
You probably suspect that your decisions are reasonably based on your judgment. However, human decisions are made according to the rules and structures at that time. By changing the decision structure and regulations, humans make different decisions under the same conditions. If you make a mistake, you don't have to regret or blame yourself for making the wrong decision. But, if you fail to judge the regulations and structure of the decision, then you must reflect on the mistake. This is to prevent repeated mistakes. - Joseph’s “just my thoughts”