As I prepared, my scores slowly improved. it was slower than I liked and at times I worried that i wasn't improving. Getting over 70 or so on any tests is probably good enough. I was a bit anxious so I pushed it to 80 and scored way higher than I need to. If you are not making progress, change something up. I used several different strategies and modalities of learning, including flashcards, giving the question from the answer, explaining concepts to my bored wife, creating mnemonics, reading, listening to audio, writing notes on stuff. I went total overkill on it because I felt like my whole career was riding on it. High-stakes testing.