All information has value, but some of it may not be valuable for your research. When going through a source, consider its value for your literature review. Here are some questions to determine if it fits the scope of your project.
Read critically to determine if it needs to be included in your literature review.
In addition, you'll want to evaluate your sources for other important criteria.
In addition to evaluating each source, you'll want to evaluate all of your sources as a whole. How is the material presented? What debates are present? What connects these ideas together? What trends do you notice? What solutions or answers do the authors provide for your research question? What aspects of the topic are missing from the conversation? Answering these questions will help you refine what sources need to present in your literature review and how you might begin to structure the conversation.