I am in a situation where, all my friends are often too busy, so I often spend weeks, here in college, without talking to another soul. To make things worse, I am very shy, and I can stutter a lot in voice calls. And thus, I am often too scared to try and message my online friends (I have only about 5, and they are the first friends I ever made in life, and I only befriended them last year), to ask them if they can hang out. I did once, but I need time to work up the courage again to ask for a hang out.
So anyways, what is it that you do, to occupy your time, when you spend most of your days with nobody to talk to? And you yourself are often busy with things in life?
Get into running or play an instrument? Personally post-college I spend a lot of time either working or doing praxis stuff, so the idea of an open weekend sounds heavenly.
Running is great, especially if you got a couple spare hours. The music thing is if you feel like you got a LOT of spare time.
Seconding musical instrument. Get on Facebook marketplace and buy a used electric guitar/bass on the cheap and get a headphone amp. Probably the easiest and cheapest way to play without annoying neighbors (assuming a dorm or near-campus shitty apartment building situation).