Bhavya, what has happened in your 11th has already been done. You cannot go back in time and undo it. We are sure you never wanted things to happen the way they happened. So what you have in your hands is the present and that is what will shape your future. One failure cannot determine you and your caliber. If you are doing so, you are doing injustice to the hardwork that you put in all these years of life. So you cannot stop yourself just because you failed in your 11th. You should certainly take up 12th either from NIOS or even as a regular student. It is absolutely ok. There is no shame in accepting your failure and moving ahead. Being stuck with one failure and not being able to get over it is not ok. So please go ahead and study your 12th. We are sure you will go places. Good luck.