Hi there! When my DD was 9 months and getting mobile we would go in her room and play quietly with just the lamp on for about 30 minutes. We would look at books or even if she was crawling around and pulling up and least there was not much else going on. Then she would be ready to do the actual wind down - sit and read a couple of books, sing a couple of songs and then straight to bed. However, she still had her paci, so I think that helped her wind down.
I might also suggest not doing the video. That might actually be stimulating your LO. Instead let her crawl around in her room and work off her energy. Hope that helps!