what is something you dislike about yourself ?

The thing that I dislike about myself is that I want to score good marks for my any exam , but I am NOT HARDWORKING ! ! ! I always wants to play ! So I will try to tell and remind myself that to study first and to revise first , then play. but I know that sometimes I can't control it . So , I tell my friends that this habit mine , and they will stop me from going out to play because i am " staying " in my student care after school . So I will will be HARDWORKING ! ! ! ! ! ! ! ! ! ! ! ! ! ! !