@i3jo.gere kudos for having a go at it!
Having your embed code in a repeating group will cause issues, the way its written it only works if its the only one on the page.
Have a read of this post and look at the linked example editor page, to get comfortable with javascript to bubble, see how many fixes you can do from there.
I need to get sleep, I’ll see in the morning how you got on. Maybe someone else will jump in too, haha.