If you want to find out more about Dianetics and Scientology, the best way to do this is to read an L. Ron Hubbard book on the subject. I personally recommend you read Scientology: A New Slant on Life.
This book really helped me with being happy and deserving to be happy, despite all the false data in my life indicating the contrary. I was at the lowest point of my life when I first picked up this book, so low that when I read the first page which talked about the fact that you could actually be happy, I closed the book because the concept had no reality for me. It was quite some time after that before I could actually face what was contained in those pages.