You don't need a fucking book.
Just have a positive outlook on life..
Wrong.
One can learn some good things in the best self help books.
They are FAR from complete solutions to problems, and one book ain't gonna change your life.
But a good book CAN supply ideas and knowledge that can make it easier to improve in the long run (which is the time perspective most change occurs within, a cumulation of small incremental changes) if these ideas = properly integrated.