Feeling lost, out of control and uncertain about which tasks to work on at all, or which ones to tackle first, is very common among PhD students. You're not alone! Your examiners won't pass you out of pity. They get to see (and they pass) a whole range of theses and it is true that some are better than others. I wasn't pleased with mine at all. But it helped me to remind myself that I am not my thesis and my thesis is not me... my thesis was the product of 3 years that didn't particularly go well on lots of levels (supervisor issues etc, sloshout.com). But I salvaged something from it and passed in the end. Not sure if helps to share that or not. But anyway, good luck my all good wished with you.