I'm sure similar threads have come up before, so if you know of any, please let me know.
I'd like to pass N1 in the future. Not sure when, but I want to get to that level as soon as I can, and have significant time every day to put into studying right now.
Background:
I've finished the Core 6k deck on Anki. I'm comfortable with all the RtK kanji and some others that have come up in vocabulary study. I'm comfortable with the grammar points in the first two grammar dictionaries, and a chunk of the points in the final grammar dictionary. My speaking and listening are probably at a higher level than other skills. Reading isn't so-so; it's probably mostly held back by insufficient vocabulary.
I passed N2 comfortably a year ago and have definitely progressed since then, but from the few N1 samples I've seen so far, the levels of these tests are completely different, and I know I'm not near N1 yet.
I plan to eventually get some JLPT-specific books (maybe from the 完全マスター series), but apart from that, any recommendations for what to focus on?
Thanks in advance!
Focus on your weakest skills. Run a simulation, see where you have the most mistakes, and practice that aspect to hell and back. If reading is an issue, start reading. If vocabulary is an issue, do more vocabulary. Aside from the JLPT thing, it's generally a good idea to make your skills more balanced.
Also, make sure you grasp the fine points. It's cool to understand things when you have context, but you might realize that you don't know what makes grammar points different from one another, and the JLPT usually focuses on that.
Textbook-wise, yeah, kanzen master is the best.
(more meta advice regarding the jlpt would be to not focus on kanjis at all. Given how 50% of the N1 test-takers are Chinese, I think the kanji questions will be worth the least)