I didn't think the video helped much either. But if you watch that AND read the printed instructions again, it makes more sense. If you follow my notes above, you should be able to do it. You cut wedges from 1 starta, then the 2nd, then you turn what's left around & cut the remaining wedges from that. When you get it done, you'll be saying - that wasn't so bad after all.
I sent an email to the company where I ordered the pattern & asked them to forward my email to her. In it, I specifically noted the areas where I thought she needed to expand on her instructions & she definitely needed to include more photos. It really is just the cutting part that's confusing.