How would you approach an interview that you might not necessarily be qualified for?

Currently working as an FA (1.5 YOE) at a medium sized logistics company. Applied and was pushed to the “final round” of a SFA position at a bank.

Honestly I wasn’t expecting to even hear back after applying (I have less YOE than requested and my experience doesnt correlate exactly to the role), so I was even more surprised when I made it into the final round.

Basically I’m wondering how to not blow this. The interview consists of 3 back to back interviews with ~2 managers/directors in each call. I have never experienced anything like this. All the interviewers have MBB or IB backgrounds… so yea kinda intimidated.

How should I handle/prep for this? The role is in FP&A, but from the job description it seems banking FP&A is quite different vs corp FP&A.