Self-serving advice refers to guidance that primarily benefits the giver rather than the receiver, and I’ve learned that it usually does not align with my needs. Arrogance is loud and tends to stem from inner insecurities. In contrast, confidence is quiet and calm, and this arises from a foundation of substantiated achievements. Psychologists term this self-efficacy – essentially, a person's self-assuredness in their ability to perform required actions to achieve particular goals. I think this concept holds the key to dealing with uncertainty.