Depersonalization disorder is a real disorder that does not involve only thoughts which are more ocd related. Depersonalization also involves feelings and sensations that are not necessarily connected to thoughts. I've read quite a few books about the subject because i've had it for 20 years non stop and nothing has made it better. For many people with dpd there is no simple cure or effective treatment. It has to do with organic brain structure and how it operates in a defective way. Maybe there is more than one type of depersonalization disorder. this disorder has liturally ruined my life. hope your treatment works well for you.