Different strokes for different folks I suppose, I’ve been consistently hitting all lessons the very same day (and even the very same hour) I’m done with reviews for a level. Sometimes you get to a 150 lessons a day, but when you do, there’s nothing else you can do but endure and keep going 
If it hadn’t been for the self-study script I’d be doomed, it’s a life saver. Sometimes I spend the extra hours on Thursdays after level up to repeat the newly learned items over
and over
and over again
but when I’m done with that, I fly through the reviews on Friday and I remember the vast majority of it that Sunday and the week after that too 