Your examiners have enough experience that they can read your thesis, understand it and know what they need to do in their role to give you and your work a fair examination.
It’s possible that your examiners might know more than you about your field. They might even be considered experts in topics related to your thesis.
If that’s the case, however you feel, remember that you have the experience of writing your thesis. You have the experience of doing the work. You have the experience of reading everything you needed to get this far. You have the experience of rising to all of the challenges you had so that you could get to submission.
Your examiners are experienced enough to do their part well. You are too.