Preparing for my first interview in 5 months after 15 years as an IT help-desk technician

It has been 5 months since my last interview and I feel rusty. I want to come across as confident and honest. What calms you down?

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

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