No problem, we came to here for sharing & helping benefit from each other.
as you saying your avg price is 18/- it means that nifty should trade on expiry day more than 5018 points then only your will get profit and we have only 8 more trading days in june expiry that will eat premium.
now DOW and NASCOM fall ore than 2% and there could be gapdown tomorrow morning.
Wait and see if you get chance to sell after 11am and take decesion.
Don't avg aagin on 5000CE, hope you will earn in some other way..
Try to use DAY TARDING STRATEGY in monycontrol message board there you can see lot of experts(Like Kadiyali, Richest user Hansal77 etc) sharing their running comments track and take your own decision for your trading.