The dissertation you'll submit is not simply 10,000 words organised into sections - it is your research story, centred around your research question. From what is currently understood, through an investigation and analysis, to a reasoned discussion based on what you've learned about the causes of things: you're crafting a narrative of knowledge.
Surely one of the best ways to develop a story is to try it out on someone! Talk through your research and what you're trying to find out with others whenever you have an opportunity. LSE LIFE study advisers have all done their own research and can provide advice based on their own experience. Bounce around ideas about how to plan and conduct research (and managing a research project alongside competing deadlines!).