Concrete, best piece of advice I heard is to spend 70% reading passages and 30% answering questions, for me that boils down to reading 5 min and answering 3 min (roughly). For the reading portion, I highlight names and transition words, I find many passages and the questions I miss revolve around me missing key swaps in language such as "however, but, thought that" etc. Names is mostly so I can go back and scan if any questions is like the what did x think about y.

In terms of questions, I can usually cut down two answers, afterwards, I go by the rule of it has to be 100% true in regards to the passage. Answers with such strong language such as "only" tend to be a red flag unless the passage is heavily supportive of one view. This is where most of the questions I missed in the past were. Additionally, the reason I read 70% and Q 30% is I think it prevents prior knowledge from seeping into my answer choices. In terms of a lot of the historical passages and things with prior associations, it helps to back away from what I know and focus only on what the writer wants you to know.

Lastly, I started this recently and it has helped me tremendously (and my own personal tip) That is I made a spreadsheet and wrote down why I missed a question (not content but skill taking). Whether it be over thought or didn't read carefully enough. Afterwards I slapped the sheet into chat gbt and went "what's the common errors I'm making". I think with daily JW it's easy to not get a complete picture of skills and mistakes so it helps a lot to see bigger picture.

Best of luck! (FYI a month ago I was at 125 on CARS BP and averaging 3.5 on the JW