I believe spirituality and psychology can go hand in hand. I believe in higher forces in this world, but also in the power of the human mind. Can it cause negative "spirits" to manifest. Absolutely, but it can also do the opposite. At my lowest point I felt evil around me. Then I found my faith again and told myself I was done listening to the negative. I told myself I was going to be happy no matter what the world threw at me and started figuring out how to make that happen. Some may say well you did that on your own, but they are wrong there were a lot of struggles that my faith saw me through. I'm not saying you need to find some sort of belief other than in yourself, but taking control can definitely have results. Telling this evil spirit whether it is in your mind or real that you are the one in control of your life, that it has no right to torment you or be in your house, and that you want it out can help. It is all about intention on your part. It can be terrifying to take that control. When you know that it has no power over you, but you do over it then you can make it leave though.