Also, for several months in 2021 I rented a studio, a semi-basement, without a kitchen. I accumulated some items from the Container Store at that time that helped organize that very small space. I now rent a 2-1, but these items are still extremely handy. Back when I was at the studio, my long term friend came to visit and commented on those items, admiring how efficiently they helped utilize the small space. So when you move in, if you have some budget and have a Container Store in your vicinity, post and I will provide the links and images. They also ship in the US but you need to spend a certain amount to qualify for free shipping.

The Container Store has sales on dorm organizing stuff yearly, but it is too late now. But the goal of setting up living in a dorm is similar to what you are facing now, so maybe look up subreddits dedicated to dorms?