Better Late then Never....dude i cracked jee, dis yr totally by self studies, ...and i stdied only 8 mnths, so the best advice i can give u is, join a gud coaching, and daily revise ur notes and practise as much as u can, dnt bog up ur brain and waste tym on topics which u dnt understand quickly, simply leave dem and move ahead, after sum refreshment come bak again on dat topic,and 1 last thing, dnt waste tym on fb and orkut, All d best