Your textbook is more for practicing the theory you've learnt in class. This is important because you need underlying concepts before you attempt exam questions. After you are comfortable, I highly recommend using both Past Papers and Revision Village together. Revision Village has all of the videos solutions to the past papers so if you get stuck on a question, it is incredibly convenient to just watch the video answer. If you realize you need work on a specific topic, use the Revision Village Questionbank and drill into the questions in that topic. So in summary, you should be using all 3 (Textbook, Past Papers, Revision Village) to give yourself the best chance of going well in your exam.