All Your Victories
Write down all of the things that you’ve achieved over the course of your PhD.
Write down as many things as you can think of where you’ve succeeded despite a setback.
List all the times you overcame your own doubts and worries.
Consider how much work you had to do to write your thesis.
Consider the background state of the world against which you’ve done all of this.
With all of your victories, you are in a great position to now succeed in your viva. Any nerves that you feel are not a sign that you are missing something; you’re just recognising that the viva is important.
With all your past victories you can work towards one more now.