I watch a lot of horror films and therefore an expert in these things…also I have access to the internet which makes me an expert on everything.
Your next step should be a Ouija board.
Then when it escalates and the spirits get violent, you need to get in student paranormal investigators.
You’ll eventually be forced to flee your home in terror in the middle of the night, but before the credits it will be revealed that the ghosts are linked to your family not the home, and they’ve come with you.
You’re weird Aunt may be part of a Witch Coven.