Mel Robbins distinguishes a second, productive type of comparison: when you observe aspects of someone else's life that you yourself could create through effort. She argues that 95 percent of what people want is achievable with consistency, discipline, and patience, and that other people's wins are not your losses. Instead of treating success as scarce, she frames it as limitless and urges readers to use others' achievements as a formula to follow.

To illustrate, Robbins recounts a call with her friend Molly, a talented interior designer who spiraled after seeing a neighborhood acquaintance—someone with no design background—blow up on social media with a polished website and viral posts. Robbins tells Molly that her jealousy is an invitation from her future self: the irritating neighbor is showing Molly the formula and exposing the work Molly has been avoiding for years. The fact that the woman has no special advantage is precisely why it stings—it proves Molly can do it too.

Robbins explains that anger and jealousy are useful fuel. People become teachers because they force you to confront your own excuses. She invokes Jeff Walker's idea of "putting in the reps" and Tom Brady's quote about being consistent, determined, and willing to work, arguing that those who trigger jealousy simply did the boring work while you made excuses.

She then shares her own story of touring a friend's renovated dream home in her 40s, complete with queen-size bunk beds and a play loft. Overwhelmed with jealousy, she lashed out at her husband Chris in the car, blaming his restaurant career. Through marriage counseling she realized she wasn't actually angry at her friend or Chris—she was angry at herself for abandoning her own ambition and outsourcing financial responsibility to her husband. The jealousy was a message about taking ownership of what she wanted.

Robbins urges readers to flip jealousy into inspiration: say Let Them to allow others their success, and Let Me to get to work putting in the reps. She closes the chapter, and the first half of the book, by summarizing the Problem/Truth/Solution framework for comparison and previewing the next section, which applies Let Them and Let Me to relationships—friendships, family, romance, and co-workers.