Made my first big work mistake and I’m panicking

My body is in full blown panic mode and I’m not sure how to proceed yet. I’ve made a couple small mistakes in my 2 years at my job, but nothing major. This is a big one and I don’t know how I’m going to remedy it. I’m so upset with myself for missing this, it would have been so easy to fix before. But now I’m stuck and I’m just in full blown sick feeling, stomach knotted, can’t concentrate anxiety. I just needed to say this into the void.