I was scammed! Email sending working, sucks...

I was scammed! I cost 10 bucks on an useless ebook called "email sending job".
It claimed you can earn $20-40 by just "processing" one email. It said the original price is $69 and now is only $10 for special.
After I made the payment, I found there is no support, no training, no video, but only an ebook.
What is "email sending job"? It means going to the classified ads website and finding other people's emails and sending them e-mails to promote your own affiliating product. I don't need say anything more. The only useful information in this ebook is a list of online business forum and a list of classified ads sites. These two lists cost me 10 bucks.