I freeze in interviews, tips? after 15 years as a school bus driver

I have an interview on Friday and my stomach is in knots. I worked as a school bus driver before this. The role is similar to my old job as a school bus driver. How do you prepare answers?

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

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