If I had my way, I wouldn't do annual reviews, if I felt that everybody would be more honest about positive and negative feedback along the way. I think the annual review process is so antiquated.
Great performers in all fields seem immune to what outsiders think about them. Their sense of themselves never depends on the feedback-positive or negative-they get from the environment.
Feedback is the breakfast of champions.
Positive thinking will let you do everything better than negative thinking will.