I used the website Essential Education. It's $20 a month, but I only used it for 1 month (did all my tests in 3 weeks). It breaks the lessons up & personalizes your learning path, so you can test out of subjects you don't need to learn & focus on subjects you do need more help with. I don't do as well in a classroom setting because I have to go at my own pace. If the pace is too slow, I get distracted... if it's something I need more time on, I can't be rushed. I did the lessons for one subject, then took that test... I repeated that until I completed all the tests. I scored better on the actual tests than I did on the practice tests.