Even Successful People Second-Guess Themselves

One of the clearest insights from the Rich Habits body of work is the destructive power of fear of failure. As Corley has written: “This fear of failure causes them to second-guess every move they make. It causes them to overthink everything. It causes them to delay in taking action. Overthinking and Procrastination is born out of this fear of failure.”

People who remain stuck often treat potential failure as something to avoid at all costs. That avoidance breeds hesitation. In contrast, the self-made millionaires in the Rich Habits study approach the journey differently. They do not believe they will somehow escape mistakes. They expect failure as an inevitable part of progress. When failure is anticipated rather than dreaded, it loses much of its emotional grip. Action becomes possible, learning follows, growth occurs, and genuine confidence compounds.

This is not blind optimism. It is a deliberate mental framing that turns the same human tendency to second-guess into data rather than a stop sign.

Corley’s research and related writings emphasize that confidence cannot be faked through positive self-talk alone. It is built through repeated evidence: small and large successes, deliberate practice, continuous learning, overcoming obstacles, and solving real problems. Successful people maintain tools such as a “victory log” (a running list of accomplishments) precisely because doubt still arises. When obstacles feel overwhelming, reviewing past wins acts as a firewall that keeps self-doubt from derailing momentum.

Outside the Rich Habits findings, extensive third-party research confirms that self-doubt and second-guessing are especially prevalent among successful people. Imposter syndrome—the persistent sense that one’s achievements are undeserved and that exposure as a “fraud” is imminent—affects a large share of high performers. Estimates vary by study and population, but figures commonly range from roughly 60% among medical students to 70% of people experiencing it at some point in life, and as high as 75% among certain groups of female executives.

The Rich Habits research does not claim that wealthy individuals never experience doubt. It shows that their daily behaviors systematically reduce the damage doubt can do and often convert it into productive caution or renewed effort. Key patterns include:

• Expecting setbacks and treating them as tuition rather than verdicts.
• Building and refining proven processes that increase accuracy, efficiency, and confidence over time.
• Focusing more on accumulated successes (via victory logs, vision boards, journals or similar tools) than on dwelling on failures.
• Engaging in continuous learning and deliberate practice that steadily expand competence and the internal evidence of competence.
• Taking action, which in and of itself, boosts confidence and courage.

As Dale Carnegie is quoted in one of Corley’s pieces: “Inaction breeds doubts and fear. Action breeds confidence and courage.”

The self-made millionaires Corley studied lived this principle.