Whatever your area of difficulty or high anxiety, research has shown that there are things you can do to alleviate your stress. The most common misconception about anxiety is that it is bad and you have to get rid of it. Take a deep breath, because I am about to tell you that the goal of changing test anxiety is not to get rid of it but to understand it and feel more in control. Anxiety's best friend is avoidance, so the more you try to avoid your anxiety, the bigger it will get. The more you begin to understand your anxiety and get a perspective on it, the less it will be in the way of your functioning.
Anxiety has it's roots in biology.
It can be functional. Anxiety prompts animals to get out of harmful situations and move toward safety. Anxiety is not such a strange phenomenon, but it is what we make of it. Write out your own scenario, think of a time you truly felt anxious, let yourself be there, and write it out. The scenario I wrote does not include any feelings.