If I'm afraid to work in fast food, am I basically worthless?

I need a job. Goodwill is hiring a cashier, but I really suck with counting money, so I really dont want to apply for that. Dairy queen is hiring. The description says I'll be doing transactions with customers. So cashier. Also id be working with customers which freaks me out. I could ask if I could just work in the back as a cook, but even that seems stressful, and I realize this is a beginning job for teenagers, and the sounds of it still freaks me out.

If I'm afraid to work in fast food, am I basically worthless?
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