I think the old essay should be fine as long as it was your own work
Also, it might not hurt to mention that you're reusing the essay in a subtle manner
I feel graduate housing is helpful initially when you're new to campus and don't have any potential roommates. However, staying alone on campus can be challenging especially for Graduate students as it can get lonely. Which campus are you planning to go to?
I'm already attending grad school and I feel you're taking this in such right spirits!! ✌️✌️ You might be like keeping yourself busy to keep yourself from realising what mess your life might seem - but in hindsight the stress for admissions isn't just worth it!
Hey
Grad school can be overwhelming! Especially when you've to build your support system from scratch again at a new place. It happens to a lot of people I think. Did you try taking a vacation? That might be a breather you need. Sometimes going to a new place changes mindset.