I felt the same way, even studying seriously since February. I thought I couldn't remember anything. I used TestMaster, flashcards, the books, and other practice exams that were passed down that were super old. I took so many exams, and only passed a few of them- my highest was a 72% on a first attempt and 85% on retakes. I was typically scoring between 66 - 69%. I found the AATBS tests much harder than the EPPP . For me, really studying the wrong answers, as in reading the rationale as well as the section of the book and taking notes, was super helpful. When I sat for the test I recognized/knew much more than I thought I did. I took it on Friday and passed with a good margin, over 600. I can't speak for you, but I swore I couldn't remember anything I studied but when I took the test I was much more confident in what I knew on the test.