How can I get past the mental block on my nursing research journal manuscript outline when I'm already drained from 12-hour clinical shifts?

I'm a senior nursing student and I've been staring at this empty manuscript outline for my capstone project for three days straight. Between the back-to-back clinical rotations and the mountain of patient care plans I have to finish, my brain just feels like absolute mush whenever I sit down to write. I've tried using the Pomodoro technique and clearing my desk, but I just end up scrolling on my phone because I’m so overwhelmed by how much data I have to synthesize. I really need to figure out a way to break this down into smaller, low-pressure chunks before my draft deadline in four days, or I'm going to totally crash.