How do you deal with exam stress, exam anxiety, and negative fear of failure?

What is positive test anxiety? 

Some students always find taking an exam difficult, even when they have studied well. They feel anxious and tense both before and during the exam. 
For some, this can have a positive effect; they actually need that tension to perform well. This is sometimes referred to as "positive test anxiety." 
For others, however, it is counterproductive. The anxiety and tension become so intense that they feel paralyzed and are unable to think clearly. This "negative test anxiety" negatively impacts performance.

How can you deal with exam stress and negative test anxiety? 

Thorough preparation is essential for those who experience negative test anxiety. 
By doing a little bit of preparation every day, you can reassure yourself that you are well-prepared—meaning there is no need to fear failing. Remind yourself that you have studied effectively; convince yourself that you know the material and that no one can take that knowledge away from you. Building self-confidence is crucial here; it will help you keep unnecessary anxieties under control. 
If you are unable to overcome your test anxiety on your own, seek help from your study coordinator or a student psychologist. 
Various studies have shown that meditation helps students focus and concentrate. Furthermore, it can help reduce study-related stress.