I recently restarted learning Japanese in earnest and as such have been leveling up WK as fast as possible. My pace is currently 1 week per level. Every Sunday I level up, and on that Sunday I focus mostly on the radicals since they determine when I unlock all the kanji. So I don’t go as hard through the first batch of kanji, but I usually get them done either that Sunday or Monday. I’ve been doing this since level 18ish, and so far it’s been pretty good. My Sundays are a little rough, but not too big of a deal.
I don’t know how many reviews I have per day as a max, because I do them as soon as they come in. I’m a student too (and also at home due to good ol’ ‘Rona) so it’s easy enough for me to just knock them out once they pop up. I also use Flamin’ Durtles app, so if I’m out and about, I can knock them out with out much problem.
I don’t use any reorder scripts. I do use the undo script because I type rather fast and am quite prone to typos here and there. All that, coupled with the fact that I’m not an especially adept learner, is to say that it is very much doable. You just have to be willing to put in the time. I’m sure there are better methods out there than what I do, but it’s the routine that I’ve gotten into and it’s what stuck.
As well, I just completed the Tango N5 deck and am now working through the Tango N4 deck. So I’m working on retiring the reviews from the first as well as going through N4. I just do all my anki reviews in the morning and that’s that.
Best of luck to you. I look forward to seeing the number on your badge ticking!

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