I have a report where the actual project work done is not exactly what was planned, so that's triggering some avoidance. It was hard to start with directly writing the report.
So what I did is the classic 'break it down' but with a pinch of artificial compartmentalization from the part triggering the avoidance:
I tried to focus only on what was actually done (significant in volume of work) switched to itemizing everything that was done first, not directly working into the report template.
I report on each of these items in isolation first, without reference to the plan, which gives me momentum since the pages fill up fast.
The last part is sorting the pages into the report template, according to the work items they fit best with.
Edit: The idea being that the momentum from the documenting of the work in isolation, will carry me through producing relatively little text referring to the plan.