Simon Rook
I write practical philosophy for thoughtful people who think too much — books about deciding, acting, and living well while the outcome is still uncertain.
The Stoic Mind for Overthinkers
A 21-Day Practical Guide to Making Decisions, Releasing What You Cannot Control, and Taking Action Without Perfect Certainty
Overthinking rarely looks like a problem from the inside. It looks like responsibility. You replay the conversation because you want to get it right. You research the decision because you want to choose well. You wait one more night because acting too soon would be careless. Hours of genuine mental effort pass without producing a decision, a plan, or a single new fact.
This book is about recognizing the point where thinking stops serving life and starts postponing it — and, more importantly, about knowing what to do next. The Stoics were unusually well equipped for that problem. They separated an event from our judgment about it, distinguished what depends on our choices from what remains exposed to chance and other people, and asked how a person could act well while outcomes stayed uncertain.
- Format
- Kindle ebook
- Published
- August 14, 2026
- Length
- About 33,000 words
By the end of the book
- Tell useful reflection apart from repetitive rumination.
- Separate facts from assumptions, predictions, and judgments.
- Identify what is actually under your control in a hard situation.
- Make sound decisions without waiting for total certainty.
- Handle mistakes, criticism, rejection, and disappointing outcomes.
- Interrupt people-pleasing and reassurance-seeking habits.
- Convert anxious mental energy into deliberate action.
- Keep a simple morning and evening Stoic practice.
Instead of asking, “How can I make this turn out exactly as I want?” Stoicism asks, “What is mine to do, and how can I do it well?” From the introduction