Interview nerves, what actually helps? - 4 months and counting

I have an interview on Wednesday and my stomach is in knots. I want to come across as confident and honest. How do you prepare answers?

Thanks for writing this out. I went through something close to it 4 months ago, and it settled down once I kept a simple log of every call and form.

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