Good luck with your withdrawal, definitely do the slow withdrawal and hopefully all will go well. Clonazepam was a nightmare for me after only 7 months. Messed me up big time and had withdrawal symptoms for 18 or more months. Frankly I think I still feel subtle side effects after 30 months, go figure. With respect to you panic attacks (disorder) I found Propranolol to be a God send for panic attacks and preventing them in the first place. I developed panic attacks while giving presentations to groups of people, often hundreds, and thought my career was over. But discovered if I took this miracle beta blocker an hour before my presentation, I could sing like a canary. Tried Xanax as doctor advised, helped, but nowhere close to the calm with propranolol. I found out others used it as well for the same stage fright I developed. We all thought it was a life saver. Now that I'm retired I no longer need the med and only took it for presentations or higher work stress events. Best of luck!!