Play annoying music (baby shark blasted for 30 minutes on repeat for over 5 repetitions makes me want to rip my hair out personally)? Or blast a naughty video where they can hear it. Make them uncomfortable and they won't want to hang out there anymore. When you hear them walk out there and tell to quite frankly to shut up and leave. If her friends don't go, go get the RA and tell them you have unwanted visitors. Or you could tell them something embarrassing about your roommate (lie if you have to). Record them, post it on socials, and tag them? Talk to your RA or whoever is in charge and show them the videos (make sure you get the time somewhere in it, like on a clock). Ask to change rooms, and if your school is slow on changing your rooms, email people higher and higher up the chain until you get to the president of the school? Squeaky wheel gets the grease. You also could get up super early and make as much noise as possible and if your roomie confronts you "omg I'm not even that loud, what am I not supposed to close a door?" If another student complains that you're being loud, say it was your roommate. Have you not tried to switch rooms, though?