University Dormitory in Washington, D.C.

Hey everyone... Not sure if there's already a thread about this, but I couldn't find the specific answers I was looking for. 🙄
So, I'm currently a junior in high school in Indianapolis, and my plan is to head to Washington, D.C. for college next year. But honestly, if I can't snag a spot in a University Dormitory, none of this matters. I just want to understand how the whole process actually works.

Do they post the applications for dorm housing once high school graduation is over, or does it happen while exams are still going on? And if I get accepted to a university in Washington, D.C.—when will I actually know if I secured a room? Will I have enough time to change my college choices on my application list if it turns out I won't have a place to live? When does the housing application even open?
Sorry, I'm completely lost here. I'd really appreciate it if someone could walk me through the logistics, because studying in Washington, D.C. is a huge goal for me.🤔

Aha, so you’ve decided that the subforum titled "Technical Support for Reddit" is the perfect place to dump all your random questions? Way to go. ☕

Did it ever cross your mind to maybe check out Student Corner instead?

It’s honestly fascinating how many people end up here because they’re just completely lost—or maybe they're just looking for friends who come with special perks. 🙏

Look, sorry if I came off like I didn't know what I was doing. 😁
I'm just starting out here. I opened this thread without even realizing I'd ended up in this specific subforum. My mistake.
Anyway, thanks for the kind words. 🤦