Sir i m in class 12 and preparing for iit jee 2010,,,,,,,,hau can i get a good rank in jee........hau to prepare myself mentally????????/ hau can i increase my efficiency??????????????// hau can i cope up with iit preparation and 12th class preparation together?????????

First and the foremost thing is that u must plan ur studies in a well mannered way…. And u must do the analysis of ur work on the daily basis…. See no one is perfect but u can approach the level of perfectness by constantly analyzing  ur weak topics of different subjects. Just have faith in urself.
Hard work done with consistency and passion will always yield the positive results…