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 Introduction to Scientology Ethics.
This book really helped me with everything, since it always shows a way to go about improving a situation and it is up to the person to figure out for themselves, not some authority imposing their will on the individual. I have used this technology to help many people improve their lives and it works and it is simple. I love to see the difference even just reading this book can make in someone's outlook - that they can make their lives better and it is no mystery.