Well, I really don't recommend procrastination. Trying to edit a 130-page document that you wrote FIVE FREAKING YEARS AGO and no longer understand is... difficult. Especially when you print it out again and discover that half the figures never got converted to GIF or PNG. And you can't simply photocopy your own bound copy because... there are pages missing from it. Whole chunks of them. (Why did I pay for it to get bound when it wasn't all there?). So you end up having to install Ye Olde Graphing Package that you used to make the original graphs. And then you discover that you have, for example, ten plots called "Maximum Daily Mean Ozone all sites" with various filename extensions. Do I want "Maximum Daily Mean Ozone all sites for plot", "Maximum Daily Mean Ozone all sites FINAL", "Maximum Daily Mean Ozone all sites for plot urban rural highlighted", or "Maximum Daily Mean Ozone all sites colourful"? I have no clue.
And you're now not sure whether the two bound copies that you submitted also had chunks of pages missing, because the stupid University letter never told you anything that useful. So you may need to get those rebound yet again. And you've found typoes and missing figure captions from the Word document that you now want to correct, and aren't sure whether you're supposed to or not.
So you are reminded, over again, why it was that you have been procrastinating it for four years. Because you really weren't mentally well enough to deal with it when even thinking about it made you feel panicky. But it's bloody annoying that you couldn't have looked at it earlier while you still, e.g. remembered what a Hurst exponent was and whether it had anything to do with skew and kurtosis. (Figure 5.33 is about Hurst exponents, but 5.33a and b are about skew and kurtosis. Why do I have a 5.33a instead of a 5.34, anyway?!). And you curse your previous lack of mental health and all the stupid mistakes that a younger you made all the more.