Scoring in the 60's is pretty typical. On the 3 exams I passed my trending score was in the mid to lower 60's on both WileyCPA and Ninja MCQs. Just make sure to hit your weakest topics in the final week and you will be fine.
Do you remember the questions that you thought were difficult when you received 50 and 61? Make sure you find out how to solve them because they might reappear again. Fix all your weaknesses and do what you're doing right now.