I got an interview

Went into subway to check on my application, and they told me they want me to come by Monday morning for an interview. Been out of the job for 6 months and someone is finally taking a chance with me. My worst fear if I get hired is being put on drive thru cause I have horrible anxiety that makes me stutter when I talk, and I’m worried I won’t be able to put the order in right. Anyone who works at subway tell me how they make the sandwiches while working drive thru? Is it while the customer is ordering or do you place it them go make it? I assume while they’re ordering cause it makes the most sense. Ugh, I’m so nervous. My last job was working at Starbucks, so I have experience with working in fast paced situations and stressed environments. My thought process is; “If I high schooler can do it, then so can I.”