Do you think it is true that school psychologists and psychiatric wards are abusing people ?

I've had an horrible psychiatric ward experience from the past and it still haunts me till today. Back when i was in high school in the 10th grade a school psychologist started paying close attention to me and then started to confront me and made my life miserable. He then removed me from my cles and putted me into his self contained cles for special needs kids. I had an picture of my favorite female artist on my binder cover and he forced me to remove the picture but i didn't listen so he phone called my parents and ask them to put me in a psychiatric ward because my parents thought he was helping so they listened to him. The Picture wasn't revealing anything and the singer was fully clothed. After getting admitted to the hospital about 3 days and i started missing my family and I ask the nurses if i could call and they yelled at me for no reason and i got upset and yelled back and they locked me in a separate weird room with only a toilet and a sink. It was very weird. After a week I got released from the hospital and they gave me a bogus diagnoses as Obsessive Compulsive Disorder ( OCD ). The school psychologist continued to make my life miserable and took away my high school diploma and gave me a District Diploma. I really think psychologists and psychiatrists and psychiatric ward are abusing people in the hospital and out in society. Do you think it is true that psychologists and psychiatric wards are abusing people ?? Has anyone else besides me encountered something similar in a psychiatric ward ?? I really want to know because i believe those people are being very abusive to others.