Wasting Time

Is it me or is it that every time I have some big project or even small assignment to do I feel  tired and sleepy as soon as I start doing it?  And time? Well time just runs away and leave me there in its dust. Sometimes it feels like everything is just against me. I almost always start my projects early so that I can finish them on time but for some reason or the other I just don't finish on time. There is something always creeping up on me and preventing me from finishing it on time. How do I stop this from happening? I feel like I am wasting my time,