Preparing for my first interview in 7 months - first time posting

I get tongue-tied when I am asked about my weaknesses. I have read a lot of threads here and could not find my exact situation. I want to come across as confident and honest. What calms you down?

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

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