Help...really nerve wracking!!

Okay so this has no relation to the topic but I was wondering if you guys could help me.

I’m wanting to work at this cafe near me and I applied to work there. They replied saying that They would like to talk to me and have a chat on Sunday. However, I get VERY anxious about things like this plus it is quite scary meeting new people as that’s just what I’m like.

Could anyone just help and be kind and give me advice? :)))))