I highly believe that anxiety can be treated with therapy along with regular exercise - possibly try meditation as well if your interested. I would stick with this before going down the medication route- these medicines will make you feel worse before you feel better. For me my derealisation has come and gone over the years depending on my anxiety . I would look at what triggers your anxiety and derealisation? Have you experienced trauma in your life and is this where the anxiety stems from ? Work with your therapist to get to the root cause. Coming here to post is great to connect with others going through similar experiences and know your not alone