Interview nerves, what actually helps? - 10 months and counting

I have an interview on Thursday and my stomach is in knots. I have been trying to stay organised about it. The role is similar to my old job as a production planner. How do you prepare answers?

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

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