What is wrong with me??

I graduated from nursing about 7 years ago and went into management in LTC and worked there for about 5 years. I just started a new job in Emergency, and am being orientated in Observation. From the get go, I was very honest about my background about the fact that I have little to no experience in nursing skills. Plus I never worked in a acute care setting. I was told that this was not a problem as they would orientate me to these skills.

My orientation feels like a horrible nightmare, and at this point I don't know if I have gone crazy or am needy or what, I am at a total loss.

• I am buddied up with someone different almost everyday of orientation, which is stressful in itself.
  
• I constatly receive contracdicting information, for example some nurses say we need a MD order for lab work, other say we do not.
  
• I have two people telling me to do two different things immediatly because each thing is a priority (one being my buddy, the other the CRN).
  
• I feel like I am running around in circles like a circus freak doing nothing productive and forced into doing one thing when I am in the middle of doing something else.
  
• I am always being told that I missed something (like a MD order, consult etc, etc), however I am not sure how to avoid this. I am so frazzled that I don't even think of asking how this can be avoided and I don't remember anyone telling me how to avoid missing this information.
  
• My buddy will do some of the paper work and patient care without telling me and then expect me do to other paper work, it all seems very random. For example, I have the MD returning my buddies telephone call about my patient, but I cannot figure out why she called the MD in the first place (of course, I am the one answering the call and my buddy is no where to be found and nothing is charted), yet I am blamed for screwing up because I missed faxing a consult. Is this normal?
  
• I want to cry in the middle of the shift.
  
• At the end of the day I feel more stupid and incompetent.
  
• I asked for constructive critizism and was told that I am slow, disorganized and a safety concern. Is this constructive or just critizism?
  
• Am I wrong for asking what some tests are, what some diagnosis mean, or how to provide some simple nursing skills such as giving a bolus of normal saline?
  
• What is the role of the buddy nurse, and should she (or he) posses a level of understanding?
  
• What is a supportive environment, and does it include giving any encourgment?
  
• I feel like everyone has given up on me.
  
• I do not want to ever to return to that place, but I need the money.
  
• Am I being too sensitive?

I use to be confident as a nurse and felt that I had enough "soft" skills to survive, such as assessments and communication skills. I always thought I was a smart nurse and a quick learner. However, any confidence I had went down the toilet very quickly. I am pretty sure I suffered from false confidence and now reality has set in and I am actually an idiot nurse. I no longer know what is normal or not because I am so dazed. Please help.