Помогите написать маленькое сочинения по английскому на тему "моя неувязка" 8

I think that I have a strange problem. On school lessons I cant be concentrated all the time on subject. I listen our teacher some minutes, then I forget about the lesson and start to draw something in my notebook, or I try to chat with my classmates. By the way I disturb my classmates and teachers a lot by my behaving on lessons. But I cant do anything with this problem. And because of this problem I cant get all information of any subject. Then I should learn an information at home, because I havent listened a teacher.