wat ever may be the time that u prepare prepare effectively and concentrate on studies

the final outcome doesnt depend on how much time u studied but on how effectively u had learnt the conceplts

studying for two years is single step and putting ur efforts and writing in the final exam is one step

i used to go to college from 5am to 8 pm (two hours relaxation included)and them read from 9pm to 11 30-12

read as much as u can but check its effectiveness

practise thoroughly

even in my case i had messed up in the final exam and ended up with  mere 265+

ok then all the best