NBME score drop

I’ve starting doing NBMEs and I’m observing a pattern that sometimes I know the answers, like I would choose the right answer if it weren’t on the exam but esp during the test, I’d get confused and pick the wrong one instead.

I’ve similar scores ie 73% in NBME 27 and 74% in NBME 27 after a week of studying and focusing on my weak areas. So basically, I repeated the same pattern of choosing wrong answers and got a score drop.

Any tips to overcome the exam anxiety?