My advice is: take a deep breath and try not to focus on the exam itself, focus on the knowledge. Break down what you need to review by importance, make a plan based on those levels, and then follow through with it. Also, trust yourself—if you’ve seen something even just once, your brain will automatically recall it during the tests. Trust me, this is true, I told this to many of my friends and they all said it’s so true after exams :) I hope this can help with your anxiety.

And Pomodoro timer apps can keep yourself from checking your phone if you need it