Here is a regex pattern to use for your event triggers
on $*:text:/(youtube.com|youtu.be)\/(.*|v=)?([\w-]{11})/Si:#: { your code }
on $*:text:/(youtube.com|youtu.be)\/(.*|v=)?([\w-]{11})/Si:?: { your code }
;youtube id = $regml(3)
Nice job none the less,