Sheldon and Valerie talk about the tendency to underestimate the difficulty of things and overestimate our abilities at times and how it's good to be realistic and honest with ourselves. The solution to this is to gain understanding and tools so that we can overcome these difficulties.
Processing Questions:
What are areas where you have underestimated the difficulty of things?
What are areas where you have overestimated your abilities?
How would being realistic and honest with yourself help in these situations?
How can you gain some understanding and tools to help in difficult situations?