your rosary had a miraculous medal too?that actually sounds like a cool rosary. i mean from what i have read(from exorcists),if it's straight haunting,then only an actual exorcist could help,but miraculous medals and other sacramentals have done miracles,so it could help with a bit. i mean at the end of the day it's christ working through the exorcist and not the other way around,so christ working through sacramentals to help op wouldn't be strange. you should have kept the rosary.when was the last time you prayed one?
to get a priest to do an exorcism, it does take some time(they need to evaluate,see if you are not just crazy etc etc),but i mean, it's either that or moving houses. i suppose you could do nothing but living in a haunted house sounds like hell. also if i am not mistaken your regular priest can do "minor" exorcisms,but i have no idea how helpful that could be. just check and see the nearest exorcist and see if you can hit him up.if he is too far(like 7 hours away),or doesn't exist,then it's better you just move houses.i suppose he could do long trips(even those 7 hours ones),but that's something you have to talk to him not me
also sometimes people/places need to be exorcised several times,before it goes fully away. it's more akin to a war then a battle when it comes to exorcists fighting demons with the power of christ.