In this episode, Dr. Kashey talks about the importance of discriminating between frustrations that are worth addressing and those that can be ignored. He emphasizes that it is reasonable to live with some open loops, hassles, and mysteries in life, and attempting to resolve all of them can lead to a feeling of solving none. Dr. Kashey introduces the concept of "discrimination" or "distinguishing" as a powerful tool for preserving one's precious frustration tolerance. He explains that by identifying the frustrating stimulus, appraising and reappraising it, creating space between stimulus and response, responding constructively, learning from the results, and generalizing the experiences, individuals can cultivate frustration tolerance. Dr. Kashey also discusses the difference between identifying frustration and identifying oneself as frustrated, highlighting the importance of recognizing the practical problem rather than getting caught up in negative emotions.