Doing great research and writing a paper is a winding, circular path, not a linear one!
Your research and your writing will often happen at the same time.
You may find that as you progress you will need to circle back, do more research, or refine your ideas as you go.
The links below might provide some additional help:
Try the "Five W's" to help refine your topic:
The questions below will help you to investigate and narrow down some ideas about your topic. Circle or highlight names, terms, and ideas that interest you the most. You might turn this into a list of search terms or "keywords."
(image from the Noun Project "five" by Adam Zubin, MV)