First, check that you have selected all levels and topics for the exercises: http://www.worddive.com/en/content. Remember to save the changes.
If you are practicing in WordDive app, have you taken into account the three different stages of learning a study item permanently?
The 3 different kinds of fish represent the progress of the study item:
- You get a blue rookie fish, when you have chosen the right answer out of four answer options
- You get a red junior fish, when you have spelled the study item correctly, without having listened to the answer beforehand.
- You get a golden master fish, when you have learned the study item permanently. Learning permanently implies that you have spelled the study item correctly at least two days in a row, without listening to it beforehand.
This means, that you can't complete one course in one day. The course is completed when you have learned all study items permanently, meaning that you have collected all the golden master fish.