When your submission of a lesson is marked as complete by the reviewer, exercises from the lesson go into a warm-up pool that you will cycle through 15 minutes every day (Read this section again for more info: https://drawabox.com/lesson/0/3/warmups). You may feel that is too little practice but you will be sticking with this course for a long time if you intend to through until the very end so those small practices will add up over time.