I feel you.
I was/still am on Effexor (coming off it now), but found that it made my anxiety skyrocket and only made worse everything it was supposed to help make better.
My pdoc refused to prescribe me any benzos for the anxiety because of their high addictive potential. So instead she prescribed me gabapentin. Which did absolutely nothing for the multiple times a day panic attacks I was getting. But then she had me take a whole lot of it at night with another med called prazosin for PTSD nightmares. That has actually helped some with the daily anxiety.

I hope you get it figured out soon, my friend! Panic attacks are miserable.