Owing a dead kaafir money;burnt the quraan

my mother died I always use to argue with her ,before her death I asked her to excuse me and she said that she has excused.once I was arguing with her at that time I became so angry I felt I may attack my mother but suddenly I felt I must burn the quran and I did that. what shall I do what will happen with me will allah taala excuse me on qiyamat? please reply asp, thanks. god bless you.abbulla.