More & Different
There is always more work you could have done. There are different questions you could have asked. There are other ways you could have approached your research.
More and different do not mean better.
They’re just more or different.
As you prepare for your viva, work to find the confidence to acknowledge alternatives but support what you did. Explore and explain the choices you made, easy or difficult, and build the certainty that what you’ve done is enough.
Build your confidence that you are enough.