Can you cut back on your work hours or something? I have had trouble working and cried at work. I told the new store manager when asked why I was crying at work that "I hate new store managers." What a thing to say to a new manager on his first day at the store! I worry that he thinks I am a crybaby.
I worry about what my boss and customers think of me (probably social phobia) to the point of feeling tense at work. The anti-depressant has helped but I don't know what to tell you except consider taking time off. You said that you have to work. I tend to think that I have to work in order to live. Is this the case for you? Is it mostly the people contact that makes the job hard? It is hard to find jobs that don't require but I suspect it can be done. Have you and your job person discussed what you most need in a job verses what you prefer? I think I will quite peppering you with questions.