@Kevin Gong Regular reminders of why they are doing the course and what they will achieve in the longterm, future pace it a bit. I often sprinkle a few case studies or examples of what I've just taught in action, so they can see what's doable. Definitly keep the videos short, I put a 10 minute limit on my videos also consider setting tasks at the end , what they should now know etc. or maybe even a workbook. The training needs to feel like it's not work and that the results are achievable. You need to almost train people to watch all the video and apply what they have learned. Also don't overlook trying a written course, my best selling course last year was one that was originally a video course that I converted to text lessons.