Interview nerves, what actually helps? - first time posting

I have an interview on Monday and my stomach is in knots. I am in Seattle, in case local advice matters. I want to come across as confident and honest. Any questions to ask at the end?

Prepare three stories with a clear beginning, action and result, and adapt them to the questions.

Keep everything in writing and save the confirmation numbers. It made the follow-up calls so much easier.