Executive Dysfunction

Why You Can't Start, Can't Switch, and Can't Finish, and How the ADHD Brain Actually Gets Things Done

252 pagesPublished 3 August 2026Kindle, paperback & hardcoverAdult ADHD

You know exactly what needs to happen next. Your hands are not doing it, and no amount of willpower is closing that gap.

The form is still unsigned. The email has been sitting in drafts for days. Even rinsing the plate by the sink feels strangely out of reach, and you have thought about it, worried about it, and promised yourself today would be different more times than you can count. From the outside it looks like a choice. From the inside, the instruction never quite arrives at your hands.

Robin Merritt takes that gap apart piece by piece: starting, switching, prioritizing, and finishing, the places an ADHD brain most often gets stuck, and what actually helps when the usual advice keeps assuming you just need to want it more. You are not choosing to leave things undone. Something real is happening between deciding and doing, and this book explains exactly what.

Book Three of The Adult ADHD Series.

For readers who can handle a crisis at work and still cannot make themselves rinse the plate, and want to know why.

The Adult ADHD Collection by Robin Merritt, eight books.

Or take the whole collection

The Adult ADHD Collection

What is actually happening in an ADHD brain, and the executive dysfunction, rejection sensitivity, time blindness, clutter and burnout that come with it. It was never laziness.

Get the collection, $29.99

Robin Merritt · 8 books · instant download, read on any device

The series

The Adult ADHD Series

  1. Adult ADHD, Finally Explained
    Book 1Adult ADHD, Finally Explained
  2. The Women’s ADHD Book
    Book 2The Women’s ADHD Book
  3. Executive Dysfunction
    Book 3Executive DysfunctionYou are here
  4. The Rejection Sensitive Brain
    Book 4The Rejection Sensitive Brain
  5. Time Blindness
    Book 5Time Blindness
  6. ADHD and Love
    Book 6ADHD and Love
  7. The ADHD Home
    Book 7The ADHD Home
  8. ADHD Burnout
    Book 8ADHD Burnout
Robin Merritt

About the author

Robin Merritt

Adult ADHD Educator

Robin Merritt spent nearly four decades believing the problem was character. The unfinished projects, the missed deadlines, the friendships let slide, the intelligence that never quite translated into a life that worked — all of it filed under 'not trying hard enough.' The adult ADHD diagnosis, when it finally came, reframed everything: not a moral failing, a neurological difference that no one had ever explained.

More about Robin Merritt