I freeze in interviews, tips? - 18 weeks in

I have an interview on Thursday and my stomach is in knots. Any experience at all would help. The role is similar to my old job as a store manager. Any questions to ask at the end?

I record myself on my phone and listen back. The second try is always better than the first.

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