Congrats on the interview! At least it's right around the corner so you don't have to dread it for too long
It won't be as bad as you think. They just want to meet you and get to know you a little. There aren't going to be a lot of right or wrong answers. I have spaced out in interviews and forgotten the question or not been able to come up with an answer. It doesn't matter, it's just a conversation. Do you have any techniques you use to calm yourself down when you get nervous, like focusing on your breath or something?