I got depersonalization disorder when I broke up with my girlfriend. I was 13. I have been to hypnotherapy, cognitive behaviour therapy, tried to distract. I have seen many psychiatrists. They prescribed me different medications (Quetiapine, Clomipramine, Fluoxetine, Lamotrigine, Imipramin, Duloxetine, Diazepam, etc.). Nothing helped. There was no hope. I have been in mental hospital for a month, also without success. My parents didn't understand me because depersonalization is extremely rare in Russia. 3 years later I decided to try Atropine Coma Therapy. (https://www.quora.com/What-is-atropine-coma-therapy
) 10 sessions and fully recovered!