I kind of went on a rant at work and offended some lady. Honestly? I'm too burnt out to care.

Today was extremely overwhelming and I am running on 3 hours of sleep if that. I was drowning in orders and was ranting to my coworker next to me also drowning in orders about how I'm going as fast as I can and I'm frustrated that my best just isn't good enough. I said too that nothing I do seems to be enough for these people and that I'm legitimately frustrated. I finished this lady's larger order and she just gave me stink eye and said have a nice day rather aggressively. I said ok have a good day back at her. I had like legions of people staring at me and to help my anxiety I keep my gaze down and don't look at anyone or say as little as possible p. It helps me keep calm and not panic.