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 understanding that one can improve conditions in life - in a simple and easy way. This book taught me that you are cause over and responsible for the conditions you have in your life and that you can actually improve them.