How do I get over this?

So, my friend invited me to their family's place in a smaller village for around two weeks. But Im SO nervous about going, I mean I've only met these relatives once before and I've only been to the village once before as well. Im just nervous and I keep overthinking about things that might go wrong. Its to the point where Im not even sure if I'll enjoy myself there. I mean, I propably will have fun, I'll be with my best friend after all its just my brain keeps telling me everything will go wrong. The fact that Im meeting new people propably just adds to my nervousness as well.

What can I do to like ease my anxiety about this? Im kinda used to being anxious most of the time but this specific thing has been bugging me for a few weeks by now