A couple of things. The first is that Codie didn't do anything-- you did.
The second is that reading one book, while often a catalyst for folks in a positive way, does not do it by itself. If you really want to heal, you will pursue healing aggressively by reading, coming to SR, AND trying Alanon at least six times AND seeking counseling.
Otherwise you are just going through the motions, and you'll get back exactly what you "earn." Little or nothing. You have to want it, work for it, and go and get it. It works if you work it.
Take care, take what you want, and leave the rest.
Cyranoak