Quit working because of stuttering

Quit working because of stuttering Hey so i think i dont have a big stutter but i sometimes stutter on the letter a or m or o so there are certain words i cant say or numbers so im afraid to stutter infront of a customer. So yesterday i went to my first day working at an icecream shop i was stressed all week before going anyway when i got there i introduced myself and they showed me around at first i just mopped the floor and cleaned the table but when it became crowded i went to help give customers icecream. I was talking to a family handing them icecream but i didnt stutter its just the way they treated me was awful and later i was talking to my coworker and i had a lisp saying a word and they were looking at me their looks made me anxious. I only stuttered once or twice in my whole shift when i talked to my coworker but seeing my coworkers talk to customers and tell them the price of things gave me anxiety and i knew i couldn’t do that so i finished the day had a panic attack or two went home and told them i didn’t wanna work anymore. And now i feel like a failure because if i cant work at a simple shop what can i do in the future will i just stay hidden??