You are dealing with a more neurotic bunch on SDN. The vast majority of people don't study THAT much. I mean, I've gotten to the point now where, excluding organic which I haven't the second level of, I really don't feel like I can "learn" much more per se. I have to work on stupid things like math, and reading the questions better. Once in a while I encounter a question on the practice exams that is a "how the hell should I have known that" type question. I don't dread studying, it is actually a nice release for me when I get on a roll, but I feel like I have looked at this stuff way too much and most of it isn't a surprise. I am not neurotic enough to memorize every equation, every hormone, and every whatever else. It seems to work so far. I'm not getting 40s on practice exams, but the mistakes I am making tend to be because I misapplied stuff I knew, or was just distracted and went stupid. Not massive flaws in knowledge.
Most medical students don't put in 6+ hours a day either. Why? They are in class from 8-5 sometimes! Even if you got a solid hour or two in during the gaps in the day, you're still faced with studying another 4 or 5 hours later on. I suspect there is a time where you have to do other things like eat, or maybe exercise. It is more important to have a constant routine and not get behind in medical school. Just like the MCAT, most of that stuff isn't technically difficult, but the volumes can be overwhelming. I'm a firm believer in trying to be efficient with studying, but NOT doing it all day. Most people need a release and I don't want to be driven to suicide out of fear because I'm trying to match Billy Bob in hours of studying. I have a very defined line with my studying. I can study for most anything for about an hour to 2 hours and get a B, but if I want the solid A it gets a LOT longer. Some classes that gap is larger than others. The truth is, I have no urge in trying to match that girl studying 12 hours a day next to me. Fear does a lot with the MCAT, but it can also hamper you. Just gotta find a balance.