I wouldn't live miserable life anymore.
This book tells nothing new.
'the purpose of this book is not to tell you something new. The purpose of this book is to remind you of what you already know'(p.105)
As far as I'm concerned, that ordinary ways of stopping worries sounds very plausible.
'We have to feel there is someone in the world who is willing to listen and able to understand.'(p.245)
This book hits the nail on the head, I think.