Looking for a job

Looking for a job I am 16 years old and am looking for my first part time job. The only problem is of course: my stutter. I am thinking a cashier might be my best bet. Even though I am not into the whole “announcement for the store” thing. I am also concerned about asking if they want a bag since I tend to stutter frequently on words that have a sharp b sound. I am pretty much guaranteed the job whenever I want it as well due to my sister and her boyfriend both working there for years. I am not sure if this is a good decision or not, I am open to suggestions!