Disappointed

I am an average student. I gave my first ipcc attempt (only grp 1) in nov 13. to my shock, I failed. somehow I gathered courage and started my studies soon after results. I reappeared in may 14 . this time I gave both groups. I worked really hard. but this time too I couldn't clear. I passed in all subjects except costing. I didnt study from icai's material though. dont know what to do now. cant understand where did I go wrong. suggest something please