You must be under a lot of psychological pressure recently. After eating and singing at one o'clock in the evening, your life is either irregular or too busy to spend the night. You are always under psychological pressure. Dreams are a portrayal of reality, and the so-called brotherhood of the Wolf is only the result of memento mori. The dream itself is random, and it is separated in splicing, so don't worry too much. But it doesn't rule out that you have similar memories, such as being scared when you were a child.
I advise you not to think about it. If you feel really uncomfortable, sleep with your family first, sleep for two days and then sleep by yourself.
You haven't participated in exorcism, most of them are psychological effects, and the result is that you feel cheated!