
Friday Feb 20, 2026
The Psychology of Not Quitting with Greg Parkin
Greg Parkin has exited multiple seven figure businesses, completed Ironman triathlons, and in his fifties is preparing to run 108 miles across the Pennine Way in winter. His life has been shaped by pressure, risk, discipline and a mindset built around pushing limits.
This episode explores what it really takes to build and scale at that level. The appetite for risk. The tolerance for uncertainty. The resilience required when the stakes are high. Greg breaks down the psychology that connects entrepreneurship and endurance sport, and why the same mental traits show up in both arenas.
We go deeper into his relationship with alcohol and how it became embedded in business culture and high performance environments. Greg shares how stress, identity and drinking were more connected than he realised, and how stepping away from alcohol sharpened his thinking, improved his stress tolerance and redirected his energy.
Key moments include:
✔ Building and exiting multiple seven figure businesses.
✔ The psychology behind entrepreneurs who refuse to quit.
✔ The emotional comedown after major achievement.
✔ Preparing for 108 miles across the Pennine Way in his fifties.
✔ The mental breaking point in ultra endurance and how to push past it.
✔ High functioning drinking in ambitious environments.
✔ The stress patterns that fuel alcohol use.
✔ Turning discipline into long term sobriety.
✔ Why resilience is built through discomfort.
A conversation about ambition, identity, endurance and the discipline required to evolve when success alone is not enough.
⸻
Connect & Follow
Follow Ellie McKay:
🔗 Website: https://onamissionpodcast.com
🔗 Instagram: https://www.instagram.com/ellie_mckay_official/?hl=en-gb
🔗 On a Mission Podcast Instagram: https://www.instagram.com/onamissionpodcast2.0/?hl=en-gb
Follow Greg Parkin:
🔗 Website: https://growthcoach.info
🔗 Instagram: https://www.instagram.com/parkin.greg?igsh=YWR2bHBuOXE1NGsy
No comments yet. Be the first to say something!