I freeze in interviews, tips? (Boise)

I have an interview on Thursday and my stomach is in knots. I am in Boise, in case local advice matters. The role is similar to my old job as a school bus driver. How do you prepare answers?

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

Ask about the first ninety days. It shows you are thinking about the work.