From page 170
People who procrastinate often have an unrealistic view of how a productive person really functions. You may assume that successful people always feel confident and easily achieve their goals without having to endure frustration, self-doubt, and failure. This "mastery" model of success is quite unrealistsic. Achieving personal goals is stressful. You will usually have to overcome numerous obstacles and setbacks along the way. If you think life should be easy and that other people don't have to struggle, you will conclude that something is "wrong" and give up when things get tough. You'll have such a low tolerance for frustration that any disappointment will be unbearable.
Highly productive people are more likely to have a "coping model" of success. They assume that life will be frustrating and that there will be numerous rejections and failures on the road to success. When they encounter these obstacles, they simply assume that things are as they should be, and they persist. They rise to the occasion with renewed determination and commitment.