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 gave me some very basic truths about life which made the whole of life more simple and understandable. And with this clearer understanding of life, through these basic truths I became more capable of controlling the factors in my life and I will no longer become the adverse effect of them.