Hello darthdukes: It's been a few days since you posted this. I'm sorry you are having this difficulty. Yes, the world of work can be difficult. I'm an older person & I've aged into my retirement years. Getting old isn't the greatest thing in the world. But one thing I am immensely grateful for is no longer having to work... or even consider the possibility that I might need to go back to work.
It certainly seems to me that you've had enough experience with working in the fast food industry that you know this simply will not work for you. Not everyone is "cut out" for that kind of work. I guess if one is desperate, one will try anything. But if there is any way around it, it seems to me you'd be wise to avoid another fast food debacle. From what you wrote, trying another fast food job would border on self abuse. It's really unfortunate that your mother is pressuring you to do so. I really hope you can hold out & find something else to do. I send you my best wishes...