I freeze in interviews, tips? after 13 years as a home health aide

I have an interview on Monday and my stomach is in knots. I would rather hear the honest version than the polite one. I have practised answers but they sound stiff. Any questions to ask at the end?

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

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