Preparing for my first interview in 13 months after 15 years as a security officer

I get tongue-tied when I am asked about my weaknesses. It has been weighing on me all week. I have practised answers but they sound stiff. Any questions to ask at the end?

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

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