Day by day my channel goes down and earnings reduce. I don't know why this situation fall, please check out my channel and advice me what should I do now?
Unless you have the major football leagues' permission to post game footage and can prove that to YouTube, if I were you, I would begin by removing all football related clips from your channel. Then I would carefully view everything YouTube has on their Copyright School, as there are also some restrictions on how software screen captures may be presented.
After all of that is done, I would think about just why you are on YouTube. If you only came to make money instead of show people your own creativity, you should consider another path.