Is there anything I can to help my anxiety and panic attacks?

I can't take any benzos because I am currently a resident at a rehab for going through 8-10 bars a day average and maxing out around 20 a day towards the end. Ever since I have gotten clean (116 days ago) my anxiety has gone from just an anxiety disorder to just having about 3 panic attacks a day at least. They range from mild panic episodes to major, full blown, panic attacks where my joints lock up and I feel like I am going to die. I have been off of my with drawl medication for about 70 days now and I feel like I am insane, is there anything I can take that isn't a controlled substance?