What do I say about why I left my last job?, procurement assistant here

They always ask why I left, and I freeze. I have been practising in the mirror. Do they ask follow-ups?

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

If a company has been in the news for layoffs, you can mention that. Often the interviewer already knows.