Lack of Concentration

If i can change one thing about reading that will be my lack of concentration. Because i can't really get my self concentrate on reading, sometimes I just want to skip to next step, or I can't really pay attention on the whole sentence and i can't bring myself to read the boring or less interesting pieces of text, so when this happens, I miss the point and get the answer wrong. When I start to work a lot of thoughts comes in my head therefore i get distracted. I feel sleepy and tired, so my performance is being affected. However, ones in a while i come across a section which i find really interesting. Since i don't want to miss part of the story again, from now on i will always try my best to concentrate when i am reading.