I really know how you feel. I have had dp on and off for 11 years. This episode has lasted this time round for 15 weeks, I am just coming to the end of it. I really know how you feel, my main symptom is always "who am I" and a profound loss of identity. I become nervous of myself, anxious, can't sleep and every day seems like a month. Slowly but surely I get lift that start to connect me to my sense of self. You will go those lifts too. Clonezapam will help the anxiety, but I have found that no anti depressant has helped my DP. It just has to run its cycle and it will go when it is ready. You have to wait it out, but it will get better, you just have to wait for the rainbow.
keep your chin up, I know how you are feeling.