To Laugh Or To Cry

I really have no idea where to start from. Today wasn't a really good day. I don't even know whether to laugh or to cry when I saw the children's results. The results were atrocious. I only know that I can blame myself for not being good enough of a tutor. I have already tried my best and maybe my best isn't enough to get them through, But no matter what happens I will try my upmost best to find ways to teach them well.