I freeze in interviews, tips?

It has been 14 months since my last interview and I feel rusty. I have read a lot of threads here and could not find my exact situation. I have practised answers but they sound stiff. What calms you down?

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

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