There are many books about what it’s like to live with mental illness and the aftermath of child sexual abuse. Most of them, though, fall into that deeply off-putting category of ‘misery memoir’: grayscale covers and cloying titles such as ‘The Child Who Everyone Hurt’ and ‘When the Darkness Never Lifts’. You’re unlikely to want to read 300-odd pages of pain porn when healthy, let alone find yourself looking forward to the next page if, like me, you end up reading the book when…