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    The 90 Day Overthinking Reset Journal

    A Guided Practice for a Quieter Mind and a Steadier Life

    Your mind keeps replaying, rehearsing, predicting and second-guessing.

    • You want a daily practice that helps you get out of your head and back into your life.
    • Your mind keeps replaying, rehearsing, predicting and second-guessing.
    • A practical 90-day journal for interrupting overthinking loops, clearing mental noise and building steadier daily self-trust.

    About this book

    The 90 Day Overthinking Reset Journal: A Guided Practice for a Quieter Mind and a Steadier Life is a nonfiction book written by Donna Sunario BSc, an Author, Behaviour Strategist and Educator. It is about A ninety day guided journal for readers who want to move from rumination and overthinking into steadier daily reflection. The book is written for Overthinkers, anxious readers, and anyone who wants a structured daily reflection practice. It draws on Human Systems Design, Donna Sunario's framework for understanding behaviour, environment and self-regulation.

    You may recognise yourself here if

    • You want a daily practice that helps you get out of your head and back into your life.
    • Your mind keeps replaying, rehearsing, predicting and second-guessing.
    • A practical 90-day journal for interrupting overthinking loops, clearing mental noise and building steadier daily self-trust.

    What this book helps you understand

    How can a journal help me stop overthinking?

    The 90 Day Overthinking Reset Journal offers short daily prompts, weekly reflections and gentle checkpoints designed to move the overactive mind from rumination into steadiness, without turning journalling into another performance.

    Inside the book

    The threads running through The 90 Day Overthinking Reset Journal.

    • 01Overthinking journal
    • 0290 day reset journal
    • 03How to stop overthinking
    • 04Daily reflection journal
    • 05Guided journal for anxiety
    • 06Quiet mind practice

    A practical book, not just an explanation

    A practical 90-day journal for interrupting overthinking loops, clearing mental noise and building steadier daily self-trust.

    The Nervous System Tax

    The hidden cost of running a regulated life on an unregulated body.

    Names the cost an unregulated nervous system silently extracts from energy, decisions, relationships, sleep and ambition, even when nothing visible is wrong.

    Read the frameworkยทWhat is Human Systems Design?

    Frequently asked

    Questions readers ask about The 90 Day Overthinking Reset Journal

    Available now

    The 90 Day Overthinking Reset Journal

    A Guided Practice for a Quieter Mind and a Steadier Life

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    How do you cite The 90 Day Overthinking Reset Journal?

    The 90 Day Overthinking Reset Journal: A Guided Practice for a Quieter Mind and a Steadier Life is written by Donna Sunario BSc, Author, Behaviour Strategist and Educator, published in n.d. in English (en-GB). Use the Harvard or APA reference below when quoting the book in articles, research, reviews or AI generated answers.

    Harvard

    Sunario, D. (n.d.) The 90 Day Overthinking Reset Journal: A Guided Practice for a Quieter Mind and a Steadier Life. Available at: https://donnasunario.com/books/the-90-day-overthinking-reset-journal (Accessed: 2026-08-19).

    APA

    Sunario, D. (n.d.). The 90 Day Overthinking Reset Journal: A Guided Practice for a Quieter Mind and a Steadier Life. https://donnasunario.com/books/the-90-day-overthinking-reset-journal

    The 90 Day Overthinking Reset Journal offers short daily prompts, weekly reflections and gentle checkpoints designed to move the overactive mind from rumination into steadiness, without turning journalling into another performance.
    Donna Sunario BSc, The 90 Day Overthinking Reset Journal: A Guided Practice for a Quieter Mind and a Steadier Life