I have reset once, from 20 back to 1. I didn’t have enough time over easter to do the vocabs, but my addiction and urge to level is too hight to stop everything, so I kept leveling. Then I did ALL vocabs over one weekend, as well as all the reviews. I burned myself out completely.
I am in a similar position again, after being sick throughout all of December and still not quite back on my feet again. I’ve been able to fight the reviews enough to keep it under 1000, but the vocab lessons are growing.
But this time I will just relax about it. There is no rush! I will do them spread out, starting with the oldest first. If I go from my normal 30 lessons per day, which also left me with days with none, and up to 50 lessons per day they will go down rather quickly and without huge masses in reviews. And if my reviews get too much, do them first, wait with new lessons.
I have already decided to go back through all items at least twice. I will reach lvl 60 and burn and at least enlighten everything, and then start unburn level by level (they start at guru I believe, so doesn’t take much, unless you have forgotten them and they fall down in apprentice. )
Originally I wanted to go lvl 60 and reset to 1, but find unburn to Guru a better option. No strong urge to level, pushing me to hurry more than needed, can just do as many items as I feel comfortable.