I know how you feel.  I am in a situation where I am so anxious all the time that I want to cry and throw up at the same time.  I used to have a job that I loved, but was laid off in 2009 and then the company itself went belly-up.  Since then, I have worked all kinds of crummy jobs--I was a server, a smoothie operator, a pharmacy tech, and a business office assistant.  None of these jobs held my interest for very long, and I decided I wanted to come back to the field I was most comfortable with, which was Accounting Support.  When my job as a business office assistant ended (I was there for exactly 25 days.  The owner of the place was too impatient to grant me the time to grasp everything I needed to know.  He WAS testing me, and I failed miserably, so he fired me), I decided to go back to temporary work.  For almost six months I have been working at a company where everyone seems nice and respectful, and I have been able to go home at night feeling good about myself.  However, they recently decided to put me in a more permanent position (the transition has not yet been made, so I am still technically a temp), and it has been an incredibly horrible experience.  I received one week of training from someone who could not train a rock to sit still.  Last week was my first week on my own, and I have been fumbling around not knowing what I am doing.  I have accomplished exactly ZERO.  When I try to ask my other coworkers for assistance, they don't seem to know how to give it.  My immediate supervisor is the type that expects people to use their brains and not bother her.  I have a meeting with her this afternoon, which I set up myself, to simply tell her that I am struggling and that something needs to be done.  My coworkers all tell me I am doing the right thing by going to her, but I am so nervous and scared!  I need to work, but I don't like being in this type of situation.  I know it's not my fault--I have stressed several times that I have no experience in what I am doing.  However, I can't help but feel like a failure.  Perhaps a lot of the way I feel comes from how I was dismissed at my last job, which was unfairly.  It's hard to be confident when you are fired for not having enough time to learn your job!