Do you get individual feedback when you submit your work? Also is there a button which you can press to say that you have finished the course?
If you've watched all the videos and completed the exercises, it should mark it as complete for you. If not, you can use the eye 'watched' icon under each lesson. I go through all of the submissions, but if you want to make extra sure I see it you can tag me with @ mentioning jlampel. Good luck!