This point of view looks a bit like taking the "blue pill" to me. It might make you happier (in the "ignorance is bliss" sense) but I doubt it will make you more succesful. If you attribute all your faults to bad luck and all your success to being smart, great etc., you are not going to improve yourself much, after all we learn a lot from our mistakes. I have to say, though, that I haven't read the book, i just checked in internet to see what it is about.