I delayed my leveling by 5 days, allowing me to put down a stack of 700 reviews when I came from vacations. 150 items of the stack were actually apprentice 2 items, so they came back the day after and the day after after… So from 700 I went to 400. Next day 600 to 300. Next day 450 to 200. Then 350 to 0. Something like that.
Leveling is great, but it’s useless to level up if you cannot take the new lessons in the same day of the following one. You will just end up messing with your memory. In your case, 400 is pretty easy to put down in 3 days. You can delay your leveling by 1 day, and push the batch of new lessons by one day. With that you should be able to catch up but you have to spend a few hours a day
If you level up, don’t start to learn the new ones before putting down low enough your stack of reviews and lessons. Take a little break, especially at this level. 4 days level is the biggest mistake I ever did.
Good luck! I just put down a 400 reviews stack today o/ You can do it as well!
It seems like your goal is to continue leveling up at a high rate, regardless of your review backlog. In which case, keep doing what you’re doing.
Personally, to be at a manageable number of reviews each day, i would recommend never doing lessons unless at 0 reviews, and ideally not doing more than 20 or so lessons a day. This comes at a small sacrifice to level speed, but makes it much more even and doable. Levels with this method still average something 8-10 days if using reorder script, and less than 14 in most cases anyway.
For me, it’s good to clear all of your lessons first. If you can’t, try doing a few each day. The rationale is that when you do your reviews, the newly queued reviews will end mixed up with your regular reviews, that way you can better remember those reviews because you see them more often.
Maybe I should plan to clear all Apprentice first. As I realized, the number of review doesn’t matter that much, but the number of Apprentice does.
And even if I do the Apprentice, it would come back within 4 hours, 8 hours or 1 day (or 3 days), anyway.
EDIT: I misread it. Yes, I should clear the lesson first, although I sometimes keep Kanji at that level, and vocab level-1; and the number of lessons is usually around 50-75.