Hello, I'm kind of new here. Until a few days ago I've just read articles to understand things more.
Today, a friend, who has been longer into this, visited me and said she felt something (or things) negative in my house. I've done some research on the history of the location. Many years ago, it used to be a lake where bodies of poor people were dumped in. And currently there is a cemetery close by.
How can I know what it is and how many there are? What is the best way to get it away as a beginner?