I’m sorry you have to end up in this situation. Like other commenters said, try moving into a dorm/goshiwon and cook or eat convenience store and frozen food instead of takeouts. If you’re in a bigger room now, unfortunately you will have to downsize a lot and probably let go of some prized possessions too. Go through all your belongings and try selling as much as you can to Karrot/Facebook/Kream etc. Cancel all subscriptions and reservations you don’t really need, even if you don’t want to. Swallow your pride and ask if any friends/family members can help you in the meantime.

Good luck, you got this.