I'm also a final year (or final semester at the time of this post) PhD student in chemistry. I know I can finish my thesis and defend on time, but my greatest fear is not being able to publish my last chapter (I only have two papers from grad school) and leaving with a publication record that is not competitive in the job market. I'm also light on awards and breadth of technical skills. I guess things could be worse, but right now I'm struggling to maintain focus when depression sets in everytime I try to work.