Preparing for my first interview in 7 months

I get tongue-tied when I am asked about my weaknesses. I want to come across as confident and honest. How do you prepare answers?

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

Thanks for writing this out. I went through something close to it last year, and it got easier once I kept a simple log of every call and form.