Mind maps are a great tool to help you organize your thoughts and see new information or connections that you might not have previously been aware of. As you develop your mind map, narrow your topic down from a broad topic to a specific research question. You will use this research question, and the keywords you've identified on your mind map, to search the library databases for resources. As you utilize the research databases, continue to fill in information on your mind map to help you see if there are gaps in your research that you need to address.
If you're not into scrawling lines and bubbles all over your page, you can work within a more linear outline. (If you DO like the lines and shapes of a mind map, you can still outline, too! It builds the structure of your paper.) This is most useful after you've already figured out your topic and what you need to say about it.
You'll put things in an order that makes sense (and you can always rearrange as needed), but you can also note the specific pieces of evidence you have for each point. Even better, start noting which sources are giving you those pieces of info! It'll make writing the paper itself so much easier. This will give you an overview so you can see where maybe you need to do some more research, or add an explanation of something.