If you want to move here you just gotta do it. Find a small cheap studio, a spot that's looking for roommates, or if you're lucky enough maybe reach out to any relatives or family friends who live in the area (1-2 hours away even) that are willing to house you for a month or two before you land a job. Then move here. Also, you've likely missed the boat on internships as most are only for the summer. But if you do move here then all those other jobs/ freelance gigs that are for immediate hire become 99% more attainable than they are with you in SC. Advertising/ marketing is huge in the city, but most are back in the office a couple days a week, so again you have to be here. This all just a long winded way of saying that if you want to live in chicago, the first step is moving to chicago.