you have got good marks and i think you can try one more time....but before you are decided that u want to drop.... do some interrospection... find out how much hard work you can do in an year and how much u need to clear jee.... knowing your potentials as well as drawbacks is most important in life... and they must be considered while taking any major decision.. so be practical... .. if u feel fully confident that its worth a trial... go for it... dont bank on what others suggest.... its u to decide...