One of the best ways to keep making progress on the dissertation while managing your anxiety about finishing is to stay in touch regularly with your advisor and committee members. By making the effort to stay in touch with them on a consistent basis, you build in inherent support and structure for making regular progress on the dissertation. You don’t need to have finished a major section to stay in touch, and staying in touch can be as simple as a two line email: still working, will send chapter soon. When you stay in touch with your advisor and committee, it’s more likely that everyone will be on the same page about your progress and this, ultimately, will decrease the likelihood of derailment and unnecessary delay. If you haven’t contacted your advisor at least once in the past two months, do so now. Keep it simple, low-key, but do what you can to stay connected.