Research Sucks

Yeah. That's about it. With no publishable new data in nearly a year, two papers still sitting unedited on my advisor's desk since March, various parts of my setup not working, multiple projects to try (again and again) but none of which I think will work (or are even worth the time,) pressure to graduate by May (HAH!) and a complete lack of interest in my research topic (mine or anyone else's,) my research is not a high-point in my life right now, to put it euphemistically. It also occurs to me that even with an eventual PhD, there's a complete dearth of skills or knowledge that I've really acquired over the last four-plus years that make me more marketable in a job hunt. Unless I stay in academia, which I'm loathe to do, this has basically been at best a respite from the real world, and more likely a huge waste of time that I could have spent furthering other, more long-lasting and useful goals. The fun of it all is that there are about five different projects, all basically related, that I have at the moment. None of them seems likely to succeed, and none of them interests me in the least. There's no chance that I'm going to have enough data to graduate by May, even if one project miraculously does work, so where do I find my motivation to stay in lab ten hours a day to ensure that I eventually will get some useful data? I think I need a motivational kick in the ass, or I may as well just leave now.