Trying to put together a threadripper hackintosh

I've got a custom PC currently running Windows that I've like to duel boot into macOS

I've been trying to follow this guide https://youtu.be/Ti8YRbBXzyw

But I keep running into this when trying to boot from the USB https://imgur.com/gallery/dYGNU

I'm not very experienced with this. Any help is appreciated.

System: Threadripper 1950x GTX 1080ti founders Asus Prime x399-A