Experience has shown me that people will perceive what they are prompted to perceive. If she has campaigned to other people that your critical thinking skills "are not ready" to the nurse manager, then likely that will keep haunting you. You will do 100 things right, then one thing will pop up and they will shake their heads and say....hmmm...see, that is what I was talking about. If there is a personality clash/generational clash, etc. between you and the preceptor, then that will be almost impossible to overcome. And there is a possiblity she is just into the power "thing", and making others look bad elevates her on some level. If you choose to stay and write the plan, etc. then I would suggest that you ask the nurse manager for another preceptor, and perhaps on an opposite shift. Tell the mgr that you want someone to be evaluating you in "the home stretch" that is new and has not worked with you from the time you were a brand new nurse. Tell them you would like the objective assessment of a new, experienced ER nurse. That nurse may have something different to say. Some people are not meant to be a preceptor, and I would question the leadership potential and mentorship ability of a 23 year old. Not to say her assessment skills and judgement are not sound, as a nurse (I am sure they are good, or she would not have been chosen as a preceptor), but mentoring is something different entirely. ER is incredibly demanding and really a tough place to start for a new grad. It can be done, but it is a very hard path. You could also choose to back off the intensity of the ER and opt to go to an ICU or step-down unit, or a chest pain unit that will use your skills that you have learned so far. If you choose to write the plan, get the job description from HR and make a plan to address each part of the job description-give specific examples of what you will do to address each item. And you will need to know what about your "critical thinking skills" is lacking. Is there something in particular? That is a very broad statement. Also, most of all, be honest with yourself. Are you really cut out to be an ER nurse? Are your skills really good enough?? Because people's lives are going to be in your hands, and knowing whether you need to do something and what that something is may make the difference between a poor and a good outcome. Take a step back and look as if you were looking in from the outside....If you are not REALLY an ER nurse... if you would not want YOU to be treating your mother (I know that sounds funny, but it is an effective way to look at the situation) admit it now and change units. I wish you luck, no matter which way the situation goes.