Speaking as a retired academic, I'm not sure how helpful it is to blame your committee for your delays, unless they've been really irresponsible (like sitting on your dissertation draft for months without reading it, which has been known to happen.) Their credibility is on the line, along with yours; and it doesn't help your supervisor's own career to have your graduation delay too long or fail.
I wonder, with Jupiter (you) in detriment in the 7th house of open enemies, whether you might actually be in an adversarial relationship with your committee. If so, see what you can do to improve this situation.
The moon shows your stake in the matter. It is void of the course, suggesting that you current situation is unlikely to change. What strikes me, though, is that it is in Taurus (fixed earth) in the third house of communication. Without even meaning to do so, do you think your committee might see you as stubbornly unwilling to make the corrections they've asked for?
I would strongly urge you to make appointments with your committee, and see if you can't communicate better with them about what they want. After all, these are the people (at least your supervisor) who will be writing your letters of recommendation in the near future.
Sadly, I saw a couple of cases in my career where the break-down of communication between the supervisor and grad student was so poor, that the supervisor washed her/his hands of the student, and simply let the student fail the oral defense. This happened when the supervisor felt that the student was truly unwilling to take direction.
Desertgirl, I hope I've been mistaken in this post! I may have judged your situation completely wrong. But if any of what I've written seems to fit, I hope you can try to see your dissertation progress from your professors' perspective.