You deserve some credit, though. Setting this up properly takes quite a bit of discipline and persistence. I only did it for certain memorization-heavy classes and I still found it to be kind of a chore. Mostly in college I just tried to understand things deeply and hoped that this kind of understanding/memory would be reasonably durable. That got me good enough grades for what I was trying to do, but it probably would not have been sufficient for a very competitive professional school like medicine.