Today's one of those days where I had little to no patience for my students. I had horrible anxiety. On my way home I was craving a drink 
Those feelings are usually short lived. I hope you made it through.
I’ve been taught that anxiety stems from focusing on the future. So when I get those feelings I try to bring myself back into the moment. Everyone is different but for me, helping someone else with something they are working on “right now” helps. As does yoga. When I’m on a mat I am not thinking about anything except exactly where I am.