Can't write

I'm stuck writing with many thoughts but not on paper, starting with getting a structure to write up one case study fully. Supervisors want at least one case written in the next month, if not two and it's hard because I can't get the structure right, though I do have the beginnings of an idea. I'll start with:

• setting
• characters
• structural dimension of social capital
• relational dimensions of social capital
• cognitive dimensions of social capital
• relationships between the dimensions

Still stuck.