How do you go from getting 3 wrong on the reading section to getting none wrong?

I have 12 days until I take the SAT and I have three practice tests left to use.

I took practice test #7 today (link: https://collegereadiness.collegeboard.org/pdf/sat-practice-test-7.pdf) and I got three wrong on the reading section (#1, #23, and #35).

1: I picked B but the answer is D. I realize now that "moral purity" in answer choice B was never mentioned in the passage. D now seems obvious to me, but while I was taking it, I completely ignored that answer choice (probably because the wording of answer choice D didn't click with me the first time I read it).

23: I chose C but the answer is A. The evidence for answer choice A is mentioned directly before the quotation the question is asking about. The quotation itself doesn't "explain that the current created by a bird differs from that of an airplane." Should I also look for the answer to this type of question in the surrounding context of the quotation?

35: I chose B initially, then changed it to A in the last minute, even though B is correct. I was debating between choosing "omnipotence" or "supremacy." I completely forgot what omnipotence means (now I know it means the quality of unlimited power), but I was also debating supremacy. Omnipotence ends up being too extreme for this context, and I should have stuck with my initial answer choice. I basically changed my answer for an answer I didn't have the slightest clue was right or not because I was unsure about B.

The main trend I've noticed in my incorrect problems is that I'm not paying close enough attention to the smaller nuances of an answer choice. How can I increase my attentiveness to details while taking the test?

Do you have any other tips for me for getting a perfect score in reading?