"The Dip" by Seth Godin explains that every new project, career or relationship starts off as exciting and fun but will eventually get harder and less fun.

At this point, you might be in a Dip, which is a temporary setback that will get better if you push through it, or a Cul-de-Sac, which is a dead-end that will never improve no matter how hard you try. Successful entrepreneurs are those who are able to give up on Cul-de-Sacs while staying motivated in Dips. They quit fast, quit often and without guilt, until they commit to beating the right Dip for the right reasons. The book helps readers understand the difference between a Dip and a Cul-de-Sac and encourages them to pick their shots carefully, altering their way of thinking about success. "The Dip" is a short, entertaining book that offers valuable insights on achieving success.