Hello @ Jessie, please check your inbox. We replied your previous question by email.
Please note that you need to watch the entire video to be able to continue to the next lesson. After you completed watching the video, you will see the quiz appear at the bottom of the page. There is a minimum 70% passing score to pass the quiz. Once you completed the quiz, you will be able to click ‘Next Lesson’ to continue.
If you see a green ‘mark as complete’ button at the bottom, please click and you should be able to continue to the next lesson. If it is greyed out, that means you have not watched the entire video.