One of the most important is CONFIDENCE. Now, all of us have made mistakes in the past, and maybe all of your performance reviews have not exactly been "glowing," but the point is not to live your life looking in the rear view mirror. If you know you have made mistakes, and you are working on improving yourself, then there is no reason why you shouldn"t move forward with CONFIDENCE and an EXPECTATION OF SUCCESS.
When you go to an interview, you expect to answer a lot of questions. But have you thought about the questions you should be asking? An interview is a lot more than a way for the employer to get to know you. It is also your chance to learn about your employer and about the position offered. What you find out could make you realize that the job is not for you after all. Or it could reaffirm your stance that you really want the position. Before you meet with any potential employer, you should compile a list of questions to ask at a job interview. Do not read from your list. Writing your questions down should serve as a memory aid only.