To view your created courses, on the Home tab page of the website, click on the Filter Results (Recently learned) button on the right - see screenshot below.
Then, select Teaching from the drop-down menu to view your created courses.
You can also filter by category. The numbers in brackets represent the number of words to review for that category.
To add a created course to your learning list (and to the app), simply start a learning session with it. You can exit the session immediately and it will get added.