Jonah Lehrer, c/o Frontal Cortex:
The problem with praising kids for their innate intelligence — the “smart” compliment — is that it misrepresents the psychological reality of education. It encourages kids to avoid the most useful kind of learning activities, which is when we learn from our mistakes. Because unless we experience the unpleasant symptoms of being wrong — that surge of Pe activity a few hundred milliseconds after the error, directing our attention to the very thing we’d like to ignore — the mind will never revise its models. We’ll keep on making the same mistakes, forsaking self-improvement for the sake of self-confidence. Samuel Beckett had the right attitude: “Ever tried. Ever failed. No matter. Try Again. Fail again. Fail better.”
Do thousands of questions. Pay attention to your answers, particularly the ones you got wrong. Learn what you need to learn and fill the gaps in your understanding. Lather, rinse, repeat x 4 years, then x the rest of your life. That is medical school in a nutshell.