“This Is What I Did”
It helps to listen to PhD stories and experiences. It can be very useful to hear about how someone prepared for their viva, what they did and how it helped them. Often it can be enlightening to know that someone else had a good viva and the reasons why.
Advice can give options and stories can give directions but you have to take responsibility in applying the relevant points to your own circumstances. If you feel that following someone else’s advice and ideas seems like it is going to be the wrong approach for you then you’re probably right.
Ask for advice. Listen to stories. Apply the best of it all to your situation to help you be ready for your viva.