how to write a research paper in a timely manner

hi everybody, i have 3 papers due this weekend one of which my professor neglected to tell us about until a few days ago. It’s a research paper on a topic of our choice related to child psychology/child development. It has to be 5 full pages not including title page or references. I chose the topic of childhood anxiety disorders. I just struggle staying focused and i feel like the way i’m doing things is inaffective. I keep going back and forth from academic journals to my paper and it feels never ending.

Should i compile all my sources before i start structuring my paper? i’ve never done a research paper in this short amount of time and it’s my first research paper in psych. I’m just extremely stressed and i have adhd and i keep going to my other papers so now i have 2 papers that are each 1/4 finished. any advice will be greatly appreciated