Spend some time after you think you’ve mastered the material block to teach it to a colleague. Find a partner and decide to teach each other different topics. Forcing yourself to speak aloud to somebody who might know more than you do actually makes sure that you know the material. When you start to teach and you realize you’re uncertain about something it will allow you to pick up on it and learn it with a friend.
Remember the old med school motto: “See one, Do one, Teach one.”