I was prescribed Clonezapam 0.5MG about a year ago, mostly for bed time because that seems to be when I get really anxious and can't sleep.
I had high hopes for it but it seemed to make my panic attacks worse, if not be the cause of them after only 3 days so my doctor took me off of it.
Medications effect everyone differently though, and do take quite a while to show signs of improvement. My doctor always told me about a month for my anxiety meds and up to three months for my antidepressant.
Give it time, but also share your concerns with you're doctor, it might take a while to find the right med for you.
I do hope things get better for you