I spent a similar amount of time divied between Wanikani, iKnow, two JLPT prep books or problem-review books, watching at least one show, and reading at least a set number of pages in a novel, each day in the roughly six months between my passing N3 and N2.
It worked but it was extremely unhealthy, so I guess just know that … that study load will probably be effective, but also feel free to balance it a little according to your needs! I also spent slightly less time/studied less rigidly in my six months between N2 and N1, so maybe all that wasn’t necessary.
Don’t quit watching anime (or better yet, live-action Japanese shows, since the dialogue and delivery will be a bit more realistic). Just reclassify it as study time.
A neat little trick is that you can do the same with comics, prose, and games just by switching the language you experience them in!