Or you can form the useful habit of lurking in the forums. That won’t be at all be a burden on your learning in the higher levels. I definitely don’t have any lessons and reviews waiting for me. None at all.
Real talk though, I used the time I had in the first 3 levels to find resources that might be helpful for my learning. Check out this topic The Ultimate Additional Japanese Resource List. That’ll keep you busy for a while until your reviews here ramp up.