Intrinsic Vs External

The above title, of course, referring to my dilemma of my current job.

If my current job could keep me occupied, I would not mind. But the truth of the matter is that I am utterly useless in that position. It does not help when everyone around me keeps on mentioning of how busy/happy they are with their jobs...
At the end of it all, I feel guilty. Guilty for drawing a salary, without being made to work for it.

Which brings me onto the next point. Should I continue after my contract ends? Or should I leave to find something that I would enjoy doing? But the fear of not being able to receive the same amount of money worries. This current one pays alright. And I do need the money..

*sigh*