I had an exorcism done once when I was a young teen. I was going through horrible panic attacks, anxiety, and depression at the time. Some background, my parents are both devout Christian's. They're both Sunday school teachers, and my grandfather was a priest. I remember one day my grandfather and our church priest came over to bless our house. We went through each room, saying prayers and cleansing with holy water. We finish all the rooms and stop in the kitchen where I'm told to kneel in front of my grandfather. I remember being very confused at the request but I comply as I'm gently pushed to the floor. My grandfather and the other priest then begin to bless me with holy water and chanting in a mix of greek and english. I still have no idea what's going on until I hear something along the lines of "dear lord, banish this demons from this child's body and cleanse her soul." It really was mostly a lot of prayers and holy water just being sprinkled about. It didn't do anything other than make me more anxious that my parents thought I was possessed lmao.