When I'm bored...

And when I have nothing to do.. I don't do anything. I don't understand. When I have nothing to do, I get so bored, but that's the time I decide not to do anything with my life. I have all the time now to do anything I want to do, but its the time I cannot do anything. I cannot even go to the beach, I cannot look for work, I cannot do school work. But I tell myself that I'm so bored. The weird thing is, when I'm busy and when I have to plan my day accordingly, I can do so much.. I do everything when I'm busy. An example is the final exams last year. I had 5 units, and 4 exams were in one week and my last exam was the Monday of the week after. But that was the time I was doing overtime with work, was planning my big vacation for Thailand & Singapore, cleaning the house, cleaning the car, and sorting other stuff.
I guess I just have to constantly keep myself busy to be productive. I'm slowly wasting the days of my life doing nothing... And trust me, it feels like crap doing nothing. I do not understand how people can do nothing. And yet I don't understand why I am doing it. I'm so effing bored!! I hope this will change soon. I need a life!!!