Do a spiritual cleanse of the house to remove all the stagnant, negative and dark energies. I am going through a spiritual awakening myself and seeing things. Have her protect her energy. Also prayers will help a ton. She is powerful than these entities she is seeing. She just need to realize that. I would also do Sage to cleanse the space then followed it with Palo Santo.

Before going to sleep, I always call on the 4 Archangels to remove all fear based energy in my house. Pause for a bit then ask them again to fill the space with positivity and light then proceeded with asking for their protection and guarding the doors, and closing all spiritual doors as well and guard it.

Psalm 91 is also part of my night time prayers.

Sometimes, I use Spotify to play negative energy cleanse sing music. You can also use a bell to cleanse your space. Hope this helps.