Juju,
I'm 20 also and know how u feel ok. I have had anxiety since I was 5 years old. I wouldn't worry too much about ur blood pressure for now, getting urself over the anxiety will sort that. I promise!

How long have u been on ur meds? You really need to give them chance to kick in, I'm on a new med and it has only been 2 weeks and my anxiety has increased a lot in that time, but the doctor tells me it usually gets worse before it gets better.
Give it a few more weeks, I know that seems like forever-we're in the same boat. And if u feel no better go back to your doctor ok. You can get thru this!
Melissa