I don't really know what I can say to help you, but I'll share some embarrassing stuff about me so you know you're not alone!
I have never had to take medications but I've contemplated it. I get extreme test anxiety too. I'll be calm for weeks before a test and then freak out the night before. I'm so bad that even some of my friends avoid me on test day because I ooze anxiety and make theirs worse.
It's better now, but in second semester when I started doing more complicated skills, I would start to get very nervous and sweat. It was SOOOOO embarrassing. The first time I put in an NG tube, I started sweating and turned ghost white. I looked so bad that afterwards the patient asked ME
was okay and my instructor told me to go sit down for a while! Other students always think I know everything because I can speak very well with them. But sometimes when I'm asked a question by an instructor or RN, I freeze and ramble like an idiot.
My skills have greatly improved and I don't freak out anymore even though I'm still a little nervous about messing up. The test anxiety never goes away, for me at least. I just try to prepare as much as I can and take it one day at a time. I wish I had some quick solution for you but I don't think there is one.