Julian Simon’s less-known book “Good Mood:” Depression results from sour self-comparisons.

Improvement in communication is a learnable skill that can be refined through practice. Developing a cheerful disposition involves making marginal progress and initiating positive habits. Self-comparison should focus on personal growth instead of ideal standards. Spending time with positive individuals and practicing interpersonal skills, as taught in resources like 'How to Win Friends and Influence People,' can enhance mood. The pursuit of a fulfilling life through enjoyable activities and nurturing meaningful relationships is more valuable than material desires, leading to a transformative impact on overall well-being.