When I encountered the final exam of QM course, I still felt a bit confused about the QM, partly because the dizzy lectures led by course teacher. So I bought two fancy textbooks, one is by Greiner and the other is by Griffith. The former contains very broad knowledge and requires good foundation of linear algebra, and the latter is more basic and easy to understand.
After about three days on revising the course, I eventually made a note especially used for revising the course, for only containing the context of exam.