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 Learning how to Learn.
This book really helped me with my study in school because I now know what to do if I have a misunderstood word. Being able to do that I now am able to remember what I was studying and so not forget it. Now I know that school will be a breeze.