This source details the importance of positive self-talk and its role in enhancing mental strength. The text explores three key types of self-talk: motivational, which involves encouraging and supporting oneself; instructional, which focuses on guiding and directing actions; and reward, which congratulates oneself for accomplishments. The author argues that consciously cultivating these types of self-talk can significantly boost performance and help individuals achieve their goals. The source provides practical advice on how to identify and modify negative self-talk patterns, emphasizing the need to practice and integrate positive self-talk habits for long-term success.