Thanks for the suggestions 
very interesting!
I think the first entitity learned that I could hear them and then it passed the word to other spirits, ‘hey, this guy can hear us’.
Ok, I got it Unofficial Tutorials: Spiritual Hygiene & Defense Collection
I actually grabbed a pencil and I drew a real circle around while thinking ‘this is my space, anybody else… get the f out’ 
I was sick and tired of the whole situation.
This is puzzling. Why do you think an entitity can be aware of what we humans are visualizing? or projecting?
Once, a powerful negative entitity got into my head. When it got inside, I could see its form - not human. It wasn’t reading my mind, it was trying to take control. I didn’t let it.
The only reason I allowed it to stay in my head was because I was fascinated watching its strange shape and color. When I had enough of the show, I just kicked it out.
How can I kill an entitity? 
This would be great as a last resort.
My tactic right now is boring her. She made a huge mistake by yawning at me. If she yawns, it means she can be bored. So I’m boring her to hell. Whenever she has enough, she’ll hopefuly go away.
It would be great if I could set up a propper ward but the kind of entities I deal with, don’t care by anything.