All out of PhD extensions - what now? I've received several one-year extensions on my graduation deadline, granted by the PhD progress committee. I've used them all up and am running into the hard deadlines set by the university. I completed my courses and oral exam already, it's just the dissertation and user studies I have left.

Please don't write me off as lazy. The PhD progress committee, my thesis committee, and my adviser all agree me my work is extremely ambitious, and everyone is satisfied I am making good progress towards it. I encountered some setbacks, the most major being my adviser making the tough call that much of my previous work couldn't be used because its age. I work 80+ hour work weeks like any other PhD student and have been forgoing writing papers in the interest of time. 

Bottom line, I'm doing everything I possibly can to hurry, but there's not enough time left. Giving up is not an option I'm willing to take, and the technology to clone myself doesn't exist (yet). 

What are my options?
This type of question can only be answered by your advisor and thesis committee. They know what caused your delay, and they can likely advise you as to what should be your only—not your top, your only—priority at this point. Once you graduate, all your other projects can resume, but at this point you have one task, and that is to graduate. Only the gatekeepers to graduation (your thesis committee) can really tell you how to do that.