For reference, this is what level 46 is like if you go full speed:
Add to that 140 lessons, 140 reviews, plus 140 reviews tomorrow at 1am.
Enjoy the easy part while it lasts!
There’s no benefit in doing all your available lessons instead of a steady amount everyday, so might as well to keep the review load consistent. If you do huge chunks of lessons, you’ll get days with massive amounts of reviews and also days with virtually no reviews (which probably caused this post) 
.