Skoolfrom $9/month

The Mental Immune System

The Mental Immune System is for anyone caught in stress and overthinking. Learn to calm your mind.

117 membersPersonal Development More on Skool

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How this community works

Pricing: $9 a monthBelow the personal development median of $15.
Size: 117 membersBigger than 23% of the personal development communities indexed here.
Revenue ceiling: $1,053 a monthIf every member paid the listed price. Free tiers, discounts and churn are not visible from outside.
Format: 2 paid tiers
Platform: Skool
Category: Personal Development
Last verified: 29 October 2026

Steal this

2 paid tiers: one price for access, another for proximity. Worth copying once you know which members want more of you.

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About The Mental Immune System

The Mental Immune System is for anyone caught in stress and overthinking. Learn to calm your mind.

Why you should join: A nine-video course, live Q&As and monthly masterclasses with freediving world record holder William Trubridge. From $9 a month.

Tiers and products

Standard
From $9 / monthly
Premium
Paid

Notes

Teardown notes

The one-liner

A Skool anxiety programme taught by freediver William Trubridge, built around one calming breath.

What they actually sell

The Mental Immune System, run by William Trubridge, lives on Skool. Its public pitch: "Master anxiety, stress & overthinking subconsciously." The paid door is Standard at $9 a month. Premium sits above that. The pitch borrows William Trubridge's freediving story: he learned this calm 100 metres underwater, and members can learn it here. Inside is a nine-video course with constant new content, live chats including Q&As with William and community interviews, and monthly mindset masterclasses with health pioneers. Member quotes lead the page, and the copy offers money back if the guarantee is not met. The aim is calm and clarity to handle life's storms, not to prevent them. Inside sit 12 courses.

Who pays and why

People caught in anxiety spirals, frozen by judgement or pushing on and hoping for the best. They want calm they can call on in the moment, from someone who has proved it under pressure. They pay for a nine-video course, live Q&As with William and monthly masterclasses with health pioneers.

Where the members come from

William's standing as an 18-time world record holder is the hook, so his existing profile as a freediver is the likely feeder. The page links no channels and shows no follower numbers.

What's holding it back

Calling it a fix for anxiety and depression invites high expectations, and the page offers testimonials rather than any clinical framing. The premium tier is not explained either.