In addition, any interest you may have in a topic will be diminished by the prospect of having to memorize all of it in a few weeks, along with multiple other topics. In medical school, there are a few givens. You will find yourself below the average on at least one test. For most premeds that have a chance of getting into medical school, this will be exquisitely painful. You will face back-biting and sliminess from many of your classmates.
Medical students come from the pool of the most effective premeds.
You do the math. You will have sleepless nights of intense studying. You will have sleepless nights of worry. You will, at some point, have at least one major crisis and breakdown. You will be abused.