What do you recommend for someone who has completed uworld using the anki for wrong answers and is still not getting a goal score of 250+ on nbmes?

The nbmes vary from 230- mid 240s. Is it time to start reading FA? or start a new Qbank?

Questions I get wrong on the nbmes are a mix of 1) stupid mistakes 2) not knowing small things in FA 3) misinterpreting the stem 4) just random questions that are not found in any resources. And the distribution is pretty equal among the four.