speech for my thesis chair

Remember how you said this was crunch time? That I hadn't left myself room for writer's block, which I then interpreted as errors? Well, writer's block isn't the problem. I don't think. First I got sick and then depressed--which is just about the lamest excuses I can think of. But I can't say "I spent an entire weekend curled up in my grandfather's armchair watching old cycles of America's Next Top Model on youtube." I mean, I could. And it would be the truth, even if it wasn't this past weekend but three weekends ago. And it even sounds better than "I spent the weekend sleeping," which was last weekend. During the weeks I have an excuse--I'm busy--but what can I do to account for those weekends? How can I explain that I feel so much of my rep riding on this thesis? So much of my future? She wants to read the chapter on her poetry when it's ready. I'm supposedly an excellent writer. But what if I'm not? What if this 80-page paper will prove that I've been faking it? What if I don't deserve any of this? What if I can't pull it off?