Premanand Maharaj Ji
How do I overcome the fear of failing an exam?
Trust Bhagwan, never accept defeat
Trust in Bhagwan ends the fear of failing, because if you fail, Bhagwan is yours and will arrange something for your good. Fearing failure is already accepting the first defeat, so prepare fully and keep the thought that you will win.
If you trust Bhagwan, fear ends. Even if I fail, Bhagwan is mine, and he will arrange something that brings me good.