I am working in customer service right now and I’m new to the job. The customer asked me where a specific item in the store and I didn’t know and took me a minute to figure it out.

In a rude way he said “you should really go around the store and figure out what things are”.

As someone in customer service I said something like “thank you, I’ll keep that in mind”. Nothing else I could say.

The problem is after that I was seething for like 10 minutes. In my head I was so annoyed and thought of different ways I would have cussed him out.

How can I be more non reactive internally when dealing with people who trigger me or even criticize me harshly?