A: I'm so nervous about tomorrow.
B: Why? It's not like they're interviewing you. Besides, you've met them before.
A: Yeah. But I'm afraid I might say something really stupid like last time.
B: Relax. There are just people. They're probably just as nervous as you. Just be yourself, and you'll be fine.
I am afraid I might ~ 뭐할까봐 걱정이야.