If my car struggles to drive in rain..

How the hell am I going to drive in the snow? So long story short, I moved to Fort Wayne from east TN. Originally raised in Wisconsin, but never drove in northern winters.
I have a FWD SUV with all terrain tires, even in the rain, I skirrt.

In east TN, we get maybe 4-5 inches total and it all melts within the next day typically.

Do I have to buy a whole set of snow tires?! 😭 is it that bad?
Does anyone know somewhere that has customizable car stickers, so I can get one that says: “get the fuck away from me I’ve never drove in northern winters”

Asking now because tires aren’t cheap so I’d rather have the money set aside. My daily commute to and from work is along DuPont road. Every week I hit the Wally World on Lima for groceries.