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 Dianetics: The Modern Science of Mental Health.
This book really helped me with understanding why I and others often acted irrationally or were failing in life. With it I also gained the hope that I could improve my life and future, and once again find happiness and pleasure in simple things.