This tutorial from UNLV Libraries gives an overview of strategies you can use to think critically about information. You will need to evaluate all the information that you come across - check out the different evaluation techniques on this guide (CRAAP, ACT UP, SIFT methods) for ways in which you can evaluate.
Source: UNLV Libraries. Thinking Critically About Information. Retrieved from: https://vimeo.com/275132942
This video from NCSU Libraries talks about why evaluation is important for your research.
Source: NC State University Libraries (2015). Evaluating Sources for Credibility. Retrieved from: https://www.lib.ncsu.edu/tutorials/evaluating-sources