PGCE question

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 or if a kid found it?

Full disclosure: in the video a content creator is interviewing me about cannabis use and I admit that I use cannabis (in the video, not now). It's not like my name is attached, my first name is mentioned in the video, but if you were to search my name in Google it doesn't come up. I'm very very worried.