Your professor will probably want you to organize your literature review thematically, as that is the default for literature reviews. Double-check with your professor if you are unsure.
So instead of writing your paper like this:
Section 1: Everything about Article 1
Section 2: Everything about Article 2
Section 3: Everything about Article 3
what you want to do is write your paper in sections organized by themes.
Check out this example Literature Review: Paraprofessionals in Inclusive Schools by Giangreco et al. (2010). We've broken it down into their themed sections and the number of sources they referenced in each:
Topic: "Paraprofessionals in Inclusive Schools: A Review of Recent Research"
Section 1: "Hiring and Retaining Paraprofessionals" references three sources' findings on this topic.
Section 2: "Training" references thirteen sources' findings on this topic.
Section 3: "Paraprofessional Roles and Responsibilities" references thirteen sources' findings on this topic.
References
Giangreco, M. F., Suter, J. C., & Doyle, M. (2010). Paraprofessionals in inclusive schools: A review of
recent research. Journal Of Educational & Psychological Consultation, 20(1), 41-57.
Kumar, R. (2011). Research methodology: A step-by-step guide for beginners (3rd ed.). Sage.

After all the great info you gathered from the Libraries and other places, you often need to synthesize it in writing!