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

It has been 3 months since my last interview and I feel rusty. I am in Boston, 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.

Arrive early, drink water and take a slow breath before you walk in. It sounds simple but it helps.