Hello everyone! I am a current GV PA student and was in your shoes last year. A few pieces of advice
1) Do not stress about the interview! I would not say it is weird at all and is very relaxed. Unless you heard from a reliable source they recently changed the interview format, it is not an MMI. One session during they day they pull you into a room and simply ask you individually a few questions and are based around the common ones that you should be expecting to prepare for (time management, what is a PA, why do you want to be a PA....). There is an essay portion, but I really enjoyed that as the question wasn’t “difficult” and allowed me to show my personality on paper. You will also get a chance to meet with our program director and us (the students) to tour our facilities and learn about how we do things. Overall I felt very relaxed and comfortable, ultimately showing me why I wanted to attend!
2) If your school has a career center, I HIGHLY recommend scheduling a mock interview. I found this helpful to have someone listen and help correctly word your answers and get some nerves out.
3) if you are on the interview alternate list, don’t stress! I was on this list and a slot opened up for me last minute (like a week before the interview). After the interview I was accepted (not even waitlisted). So don’t let this discourage you! If being a PA truly is your end goal, you will get there one one day. Best of luck!