I agree with the salt idea. 
When a friend of mine moved in to get new home, her baby would not sleep in the bedroom and she always felt uneasy. I left salt in bowls at the corners of the room for a night and I did a personal cleansing spell in the room. The baby started sleeping in there after that.
After my problems in late 2020, I cast a circle around the home I’m living in currently. I didn’t want negativity to find it’s way to me since I attracted it like a moth to the flame. I think Megan has shared ideas about that but I can’t find them right now. Personally, I just walked around the property 3 times and then came in and did my spell.