You really need to focus your mind and heart on Christ. You have not indicated at all that you have spoken out loud to the spirit that you will not accept it in your presence and that you will not be afraid. Do not be afraid to feel in your heart and use the light of Christ. If you walk with him and know him, you will indeed be protected. It is obvious that you have opened a door somewhere or played with something you shouldn't have. When curious, sometimes that can bite you back. Please just keep that in mind.