It depends on how you like to approach reflecting on ways to improve. Personally, after I submitted assingments or completed exams, I wasn't as interested in how I didn't perform well as much as why. I found the external factors on my work ethic - be it motivation, time-management or mindset - far more valuable in changing my performance than simply looking at a marking criteria to gauge my strengths and weaknesses.
For essays specifically, I always preferred answering another question with a different scenario or context to the one prior. That allowed me to approach a reattempt with a clearer understanding of what I wanted to change rather than continue to have thoughts lingering around about why the work I previously completed wasn't recieved well by the marker.