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.
I tried it, and it worked like the book describes it. Already in the first session I wound up laughing at incidents I considered quite tragic in my life, and was able to confront these more easily afterwards.