Looking Back, Looking Ahead
Looking back is part of getting ready. You need to review and reflect on what you’ve done, why you did it and how you got here.
Looking ahead is part of getting ready. You need to know what to expect, what examiners look for and consequently think about how you will meet the needs of the viva.
You might need to focus on one more than the other for your personal viva preparations, but you need both in order to be ready for your viva.
Look back. Look ahead. Recognise how you got this far and what you still need to be ready.