The challenge is simple: Quitting when you hit the Dip is a bad idea. If the journey you started was worth doing, then quitting when you hit the Dip just wastes the time you’ve already invested. Quit in the Dip often enough and you’ll find yourself becoming a serial quitter, starting many things but accomplishing little. Simple: If you can’t make it through the Dip, don’t start. If you can embrace that simple rule, you’ll be a lot choosier about which journeys you start.
Seth Godin (2007). “The Dip: A Little Book That Teaches You When to Quit (and When to Stick)”, p.32, Penguin