Authentic Happiness is the place to start for more information about positive psychology. Martin Seligman is well known as a founding father in the field of positive psychology, which is one of my favorite approaches in psychology. It differs from most other approaches in that instead of focusing on fixing what is wrong, positive psychologists try to help people find their strengths and work to develop them. In other words – do more of what makes you happy, and some of the symptoms will start to fade away. This website has some great questionnaires to take to get a better sense of your strengths and how to enhance them. If you’re going to take the questionnaires, though, I highly recommend you look at his book for help interpreting the results. I don’t feel like this information is as straightforwardly communicated on the website as it is in the book.