Great thread!
I have a book that has helped me alot with this topic in my own life. The title is We Are Driven-the compulsive behaviors America applauds by Dr. Robert Hemfelt, Dr. Frank Minirth and Dr. Paul Meier. Written by two medical doctors and a psychologist they discuss how people can become harmfully driven/addicted in various areas of life. They offer hope to those who seek to change. It's not a new book (published 1991) but is worth reading if you can find it.