Before you embark on your regular study sessions, you should make sure you have all the materials and tools ready to go! If your primary material is this study guide and the BABOK® Guide v3 itself, then that is all good. You may also like to use flashcards or additional courses to help you study. Try your best to choose all these aids before you start. This will go a long way to building your confidence that if you focus on these tools and materials, you will be alright to pass the exams. If you keep changing the tools and materials you will use, you will indirectly be doubting yourself and your ability to pass the exams the first time.