You definitely did yourself a favor by giving more time to reading the passage but you need to dig deeper into your errors to find a solution. When you read the explanations its really important that you learn why you chose the incorrect answer. Did the answer choice actually answer the question? Did you miss a key word in the answer or question? Were you not focused? If none of these is the issue and you simply answered with a misunderstanding of the passage, read over the passage again and assess what it is about your style of reading that caused you to overlook or misinterpret something. Ask yourself if you are substituting your opinions for what is written in black and white in the passage. Are you focusing on the details instead of structure? Are you separating each paragraph into separate stories rather than piecing each paragraph together into a logical flow of ideas. Take notes and look for patterns in your errors. Read your notes everyday before you practice again and always be conscious of those habits that cause you to make errors. It's really easy to analyze a days verbal work and have an "ah ha" moment but then forget it and continue doing passages the same way the following day. I found a journal to be super helpful for this because you can't remember all those discoveries you make in your analysis without writing them own and studying them. If you can spend 10 minutes reviewing over your notes before practicing verbal everyday, you're going to be mindful enough of those errors to start breaking habits and creating new ones as you go along. This is super important in making legitimate progress in verbal because the more you practice without making progress, the more you are going to solidify bad testing habits.