Thanks for this feedback. I passed it onto the product team. We understand that it's annoying, but they're not sure whether there's a way for you to get rid of it right now. I'll let you know if anything changes.
Unfortunately, the feature was optimized for the student experience, and we didn't expect that people would be going back to the same levels over and over. We definitely don't want this to be a frustrating experience, so I'm sorry I can't give you better news right now.