Check and see if there is a Radio Shack near you and see if they carry the book. Some of them do. If not you can look for it online just make sure it is a new recent one as the rules have changed since Feburary. Also when you get along into it there are a few websites that have practice tests for free. e-ham.com is one I think and another good ham radio site is qrz.com they have a forum on there you can ask questions like this site. Also if you need help try and find a local ham radio club and they can steer you in the right direction.
You just have to muscle through it. I tried winging the online tests for practice & could never score high enough. I sat down for a week, used the practice tests for each chapter in the back & scored 33 out of 35 on my test.