You did the right thing, I know it was full time, but you were not happy there. A job should be a place you don't mind going to and if it's giving you a headache every single day, then it's not worth. You'll have way more fun in a comic shop and you'll just feel happier.

I can understand why you're worried, anyone would be, but you're going to be fine. You just might have to be careful saving money, but you're good at that. *hugs*