Phone screen booked, I am thrilled - any advice?

After 4 applications I finally got a call for an interview as a production planner. I have read a lot of threads here and could not find my exact situation. I tailored my résumé and added a short note. What did you ask at the end of the interview?

Well done. Take a breath and remember they already liked what they read.

Thanks for writing this out. I went through something close to it last year, and it settled down once I kept a simple log of every call and form.