All good work man. The rate doesn't matter much as long as you continue moving forward. If you find yourself struggling to "enjoy" studying, I suggest taking a step back and thinking about how to adjust the excercice to make it more fun for yourself.
For example, drawing boxes might not seem as fun, but what if you make it a point to "build" a little city and draw your characters fighting around them, knocking each box out like if they're figthing across falling rocks?
Or look for gestures that fit into what you like in anime, maybe cosplayers posing or the like.
Then again, maybe you just had limited bandwith and plenty of motivation, so that's all good.
