I took N2 in July, and signed up again for December without seeing the results, because I’m almost certain that I failed.
Reading speed is a big factor in the exam, but make sure to do listening practice exams as well. The listening questions can be tricky if you are missing any key grammar or vocabulary, because sometimes the correct answer is the only thing that was not mentioned.
Part of my plan is to go through 新完全マスター読解, and mine all of the unknown vocab from that book while I read it.
I would say the ideal reading speed would be the ability to read the N2 level texts out loud at a listenable pace.


