Good luck, Kuuki.
When I was applying to my college I had to give an interview too, and it was literally the first interview I'd ever given in my life. I was so nervous that when I wasn't talking, my teeth were chattering very visibly

so I kept talking so that they wouldn't notice. I ended up rambling and going on and on when I had nothing to say lol. It didn't go that bad though, because I still got in and I was the only one from my city who got in during the early admissions cycle
The interviewers will be understanding (I hope) because they'll know most people are nervous about interviews.