If you don't want to muck it up, ignore RotationGearup's advice and put in the effort understanding the material instead of learning the questions. Make sure you understand the concepts to the best of your abilities - if necessary look beyond the material supplied (e.g. other books, Youtube, forums etc.). You'll find common concepts between subjects, making your life easier, and you'll be able to answer curveball interview questions in the future. Nothing in the ATPLs is particularly academically taxing, there's just a lot of material.
I would recommend using the question banks just before your exam only as a tool for checking your knowledge and getting used to the bizarre way some questions are asked. Don't rote learn the question as the regulator can change the questions (ask anyone who took Ops early this year!).
G