Dereked

When a YouTuber, particularly one who creates STEM focused content, is working on a project only for Veritasium (real name, Derek Muller) to release a video on the topic before they've finished.

Dangit man, I was about 70% done with a video on knot theory when Veritasium came out with one of his own.
Sounds like you got Dereked bud.