Should I be worried?

I am a PGCE student and am quite concerned. I have just started my PGCE course and have learned about the Teachers Standards (professional behaviour) and we have been informed about keeping our content online private etc. I have a concern... About 2 years ago, a video was posted on YouTube by a content creator and I am in it for a few minutes behaving a bit unprofessionally. My name is not attached to the video, it's just me talking to the camera. There's nothing I can do to get this taken down, I have tried with no success. Would I be screwed if a school found this out?