Hope & Belief
It’s wrong to hope for confidence at your viva but right to believe you’ll succeed.
Confidence is cultivated: you don’t just cross your fingers and hope for it. You have to do something to change how you feel.
Believing you’ll pass is sensible: the statistics show that the overwhelming majority of PhD candidates who submit a thesis succeed at the viva. It’s reasonable to believe you’ll pass too.
Don’t hope for confidence – build it up. Don’t worry about passing – work towards it.