Monday morning I wake up at 6:30am. I have about 5 hours of class a day, scattered here and there, beginning at 8am. Some of them I don't go to, and prefer studying the material on my own, but I force myself to spend the entirety of the scheduled class time studying, or it's just wasted.
I generally stay after classes in the library and study for a few more hours, till 5pm, then I head home to my wife. We eat dinner, watch a tv show, and then it's off for more studying.
This is most every day, with some days adding in a 2 hour lab (twice or three times weekly). I generally have about 10-15 hours of free time a week, so I use it sparingly.
Some weeks have 2-3 tests, so the studying is much more intense for about a week and a half beforehand.
It all depends on what you want to make of it. I try and get about a standard deviation above the class average (our class and the DO class combined, it's just not as competitive with only our class) or I don't think I did enough. I could probably spend another 20 hours a week just hanging out doing whatever and come in a little below the average. I'm here to kick ass and take names, though, so that's what I spend all my time doing.
Some classes are easier for me than others, and it will probably be the same for you. I had a good chemistry/biochem background, and terribly bio/anatomy. I missed more questions on our first written/practical anatomy exam than I did the entire 6 exams in biochem. Anatomy is just rough for me, so I spend a lot of additional time on it.
This is your life for a couple years. There's other stuff, sure, but this takes priority, otherwise you're in the wrong field.