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.
Scientology: A New Slant on Life answered many of the things I had wondered about for many years. I found hope in knowing someone else (L. Ron Hubbard) thought life was worth living and improvement was truly possible.