Your final few days of viva preparations might involve a lot of work. If your time has been pressured because of other responsibilities you might feel like you have no other choice.
Your final few days of getting ready could involve talking with your supervisor or friends about your work, getting that final practice for engaging with your examiners in the viva.
Those final days should hopefully not involve reading and re-reading your thesis or notes to cram information into your brain: the viva isn’t a test of memory, you don’t need to have instant recall when you respond to your examiners.
Maybe, hopefully, the final push for your viva will be low-pressure, low-stress. I hope that after years of hard work and weeks of gentle prep you could have a few days of rest, relaxation and refreshing yourself before you meet your examiners. A few days before you pass, reminding yourself that you’ve almost done it, that you must be good at what you do to have got this far.
I think that’s the real final push: pushing yourself to believe that you are good enough.