Alright, to make you feel warm and fuzzy inside I can tell you that I improved >20 points on Step II with less studying then for step I (oh, and I did around avg on step I). So, study for step II as though it is a 9 hour exam that will somewhat difficult - because it is. Do questions. I did appx 860 Q bank questions which I thought was very helpful - I read the expanations to correct ans and incorrect.
Good luck studying! You'll feel the rewards much more so than in Step I. I found it a lot more fun studying for step II.
Dani