The advance class recommends that you should be able to clear most of bridges and rollercoaster. The class should help you ride Moonscape, and similar trails. Scooter, it is inevitable that you will fall. The key is to get back up and try it again. From what I saw of you, it won't take long before you are riding as hard of a trail that you want to.
I have a friend who is a terrific mountain biker. When he approaches something new to him, he stops looks at the trail, to see where the line is, and then will try it 3 times. If he doesn't make it by the third time. he looks carefully at it again and then moves on. He knows it will be there next time he rides.
The point is even really good riders need to take things in steps. Try what you want to ride everytime you are there, learn from your falls get back up try again and you will get there.