How Belief and Growth Mindset Strengthen Willpower and Self-Discipline
by Marion Hewitt | 28 May 2025
We’ve all had moments where our self-control seems to vanish. Maybe it’s the workout we skipped, or we gave in to the call of the chocolate bar. Often, we blame this on a lack of willpower, that mysterious force some people seem to have more of than others.
But willpower isn’t just something we have or don’t have. It’s something we can build not through sheer effort alone, but by shifting how we think.
What is Willpower?
Willpower is often defined as the ability to resist short-term temptations to meet long-term goals. It plays a crucial role in self-discipline, habit formation, and achieving meaningful personal and professional objectives.
Is Willpower Limited or Limitless?
For years, psychologists believed willpower was like a muscle which became fatigued with use. For example, you might summon the willpower to complete a workout, only to find yourself later giving in to the chocolate. This idea of “ego depletion” suggested willpower was a finite resource.
However, newer research challenges this and studies show that it’s not just how much we use our willpower that matters but what we believe about it. People who see willpower as a renewable resource tend to perform better under pressure and show fewer signs of depletion.
Growth Mindset is A Key to Willpower
Psychologist Carol Dweck coined the term growth mindset to describe the belief that abilities including intelligence, creativity, and self-control, can be developed through effort and learning. In contrast, a fixed mindset sees these traits as static.
Research consistently shows that people with a growth mindset are more likely to:
- Seek challenges
- Embrace failure as a learning opportunity
- Achieve better outcomes in education, work, and life
In 2024, a study involving 1,500 individuals found that those with higher levels of willpower were more likely to hold a growth mindset. They weren’t more disciplined, they believed they could develop their discipline over time. These participants also displayed high levels of grit, described by psychologist Angela Duckworth as a combination of passion and persistence.
Professor Sigmundsson, one of the lead authors of the study, observed: “Those who believe that intelligence is changeable are more passionate and persistent and have a stronger ‘I CAN’ feeling.”
Everyday Benefits of a Growth Mindset
This research has powerful real-life applications:
- Personal Goals – If you are struggling with fitness or habits, believing you can grow more disciplined helps you stick to routines.
- Professional Challenges – A growth mindset helps you handle stretch assignments or feedback as opportunities, not threats.
- Parenting or Leadership –Teaching others that abilities can grow builds resilience, adaptability, and motivation.
This isn’t about toxic positivity or pretending effort always guarantees success. It’s about recognising that effort, when combined with learning, leads to progress—and belief fuels persistence.
How to Build a Growth Mindset (and Strengthen Willpower)
Cultivating a growth mindset takes practice.
- Reframe Setbacks – Replace “I failed” with “I haven’t mastered it yet.”
- Reflect and Learn – Analyse what went wrong and what you can improve next time.
- Celebrate Small Wins – Reinforce effort and consistency, not seeking perfection.
- Seek Feedback – Recognise constructive feedback as an essential tool for growth.
- Be Patient – Personal development is a process over time.
These practices can transform your relationship with willpower from something you “lack” to something you build.
Final Thoughts
In a world obsessed with quick fixes, it’s easy to seek external solutions for internal struggles. But science increasingly points inward showing that the way we think about our abilities, especially our capacity to persist, shapes our success.
To summarise, you don’t need to be born disciplined, you need to believe you can become that way.
“Little by little, one travels far.” — J.R.R. Tolkien
Put This Into Practice
Join our upcoming Refuel and Recharge: Practical Self-Care for Lasting Resilience workshop on Tuesday 24 June where we’ll explore:
- The science behind self-care and its impact on professional performance
- Practical strategies to integrate self-care into daily routines
- How to overcome common barriers to maintaining consistent self-care
Contact us for more information about how we can together increase individual and organisational wellbeing, or learn more about Unleashing You, our unique programme for personal growth, increased performance and wellbeing.
Call 07980 513646 or send us an email marionhewitt@proteasolutions.co.uk