Interview nerves, what actually helps? - what worked for you?

It has been 7 months since my last interview and I feel rusty. I have been trying to stay organised about it. The role is similar to my old job as a software tester. How do you prepare answers?

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

Keep everything in writing and save the confirmation numbers. It made the follow-up calls so much easier.