Put down the books and the device that gets you on the Internet. What you're doing is looking for ways to keep thinking about him and your experience with him. You want to talk about him with your therapist. You want to research relations like the one you had with him. You want to stay immersed in this pseudo-experience.

Get out of the house everyday and go interact with people. No book is going to teach you to love yourself. You need attention from other people. You need success in romance. Life has to be lived. You can read about it till the cows come home, and - in the end - you will have learned nothing.