Maybe you can give us more insigh what went wrong.. how many hours u plugged in? which band? - fail is fail i understand.. but you have to know how bad did u do in morning compared with others? - given that you studied alot and practiced.. Maybe you had squeezed in morning, or maybe you felt it was easy but you didnt answer what CFAI wants.
Again, i encourage you to download past CFA AM exams when you register for 2016, try to take notes as much as you can, write in bullet points, short answers (maximum 10 words) this will help. Also, PM can be easily aced and getting at least 80% can gurantee a pass even if you scored less than 60% in AM. Read those CFA answers, do as much as possible AM exam (Old CFAI exams only), Take notes, use Flashcards if needed (didn’t use them though), Watch videos (I watched IFT videos for L2 and L3 and they were very helpful). Do as much as EOC/and Blue Boxes from CFAI books..