How does this method work?
The online course should be built around a concrete task that the learner can do, not a lot of videos. Instead of 'learn photography', 'take five product photos on the phone and prepare them for the store' is a measurable result. Break the topic into small tasks; Each lesson should be added to the previous step. Clearly state the extent of your expertise and the prerequisites for the course.
Evaluation with a concrete example
Before filming the twenty-hour course, you can test demand with a small live workshop or sample lesson. Having participants stuck at the same stage may indicate that better examples, not more videos, are needed. Deduct platform expenses, advertising, refunds and question support time from your course income. If you are pre-selling, clearly explain that the content is not yet complete and the delivery schedule.
Your first application: what should you have?
Write the learning outcome in one sentence, prepare a three-lesson pilot, and add practice tasks to each lesson. Compare the participant's starting and finishing work. Don't use fake success stories or job guarantees. Let the first product be a small tutorial that can show whether the student can complete the task on their own.