Actual cost of CWRU

So I got accepted and got a decent chunk of money that takes off tuition, but I’m still pretty worried about cost of actual living on campus. Right now their estimation is $20k a year for food, board, and other costs, but I was wondering what those of y’all who went there actually payed. I’m living with my mom and I know that I’ll have to take out loans regardless, but I’d like to lessen them as much as possible. What advice do you guys have in lowering cost of living, and those of you who’ve been there how much would cost of living realistically be?