I would like to suggest very strongly that you do not listen to your therapist here. I was in the same situation, I took the drugs and it fucked me up badly. Getting off the drugs was really hard and I had to apply a great deal of discipline to do so. Anxiety is not dangerous, it's just really unpleasant. The side effects from drugs can be dangerous in the long term.
Tinnitus Talk Support Forum
Try to snap out of the anxiety in a more natural way instead! Go for walks, breath fresh air, surround yourself with people who are positive for you, listen to music you like, use your willpower to take control of your thoughts. It is so much better than the drugs. The drugs would help you at first, but they could backfire later.