That's very impressive! Which prep test have you taken so far?(e.g., pt 52-71) If it were more earlier ones(pre-70), I'm positive that there is a lot of rooms for improvement.
... like this - maybe you are 70% confidence and comparing answer choices ... a question you are already 70% confident and miss 3 questions ... questions can be done with 70% confidence and 7 with 50 ...