Interview nerves, what actually helps? - 3 months and counting

I have an interview on Thursday and my stomach is in knots. There are 4 people counting on me, so I am trying to be careful. I want to come across as confident and honest. Any questions to ask at the end?

Keep everything in writing and save the confirmation numbers. It saved me later.

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