Panicking about Panicking

I've had anxiety for some time now, and maybe 5 years ago or so, my Dr. prescribed me Clonazepam. My Dr. now is saying for me to keep taking them but only when it's a major panic attack. Thing is, sometimes my panic attacks hit out of nowhere or affect me physically, so I get scared of them happening and take the panic medication. I'm trying to take it less, so i've been taking a cbd capsule on top of my normal medication (zoloft). I sometimes am not sure if i'm taking these panic meds at the right time or if putting the cbd capsules in their place will help me take the Clonazepam less. It's a low dose of 0.5mg. With the physical panic things like my leg suddenly hurts to where I can barely walk, then when I get out of the panicky situation i'm just fine, I'm not sure if this is psychosomatic or what..