What to say about myself?

Hey guys! I was just looking for some ideas on and key phrases or words I should write for an application? There is a writing portion where it states : “An application form sometimes makes it difficult for an individual to adequately summarize a complete background. Use the space below to summarize any additional information necessary to describe your full qualifications for the specific position which you are applying.” I have written so far about how I am a student and what my schooling status is, and my availability. I was wondering if anyone has any other ideas for what I could/should include ? Can I use this space to include good qualities about myself? Thanks!

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