Some numbers are magical for the viva, and some can only cause you to worry.
Don’t think about how long your viva might be. It’s not worth obsessing over how many pages of references you have in your bibliography. And don’t check your word count to try to boost your confidence.
Instead of counting little details or wondering about things you have no control over, focus on how long you’ve been doing the work.
Several years – which can be properly understood as thousands of hours. Consider the time and effort you will have spent in getting ready for the viva itself. Remember the time invested in becoming a better researcher – and your many achievements along the way.
What other magic numbers could help you feel good for your viva?