If you have chosen a course that does not appeal to you, you can cancel the course at any time.
To do this, go to course overview by clicking 'Cancel' on the homepage under the course evaluation button. There you can switch between several courses.
You are free to train with several courses simultaneously. Please note that multiple courses do take up a lot of time if you train regularly.
You can also choose to pause your Premium subscription for an extended period of time (due to vacation, illness, etc.). Please note that this will not be taken into account in your evaluation.