And how did they help?
You did the work for your PhD, but no-one does it completely alone. You have a supervisor or two, helpers, supporters, confidantes, sounding boards, friends, family and folk who want you to succeed. All of them would probably say good luck before the viva, but most of them have done more before then.
Most could do more still to help you prepare.
Who has helped you? How did they help? And what more could you ask for?
Everyone gets help from somewhere. That’s good.
Think about how you’ll be able to help others after you’re done too.