Locked out! Keyboard incompatible with FileVault on Macbook Pro. How to type in the password to disable FileVault?

I was logging in from my startup screen as usual when "Incorrect password" flashed across the screen.

I typed it in again which is when I realized that the keys on my keyboard were malfunctioning and inputting more than one character on pressing once.

As I was typing in a password, I couldn't see what characters it was inputting.

I pressed the on/off button to restart the system, which is the go-to fix for the layperson.

It switched on to a Password Reset screen.

I was asked why I can't type in the password on the login screen.

I was relieved to see the third option: "My keyboard isn't working when typing my password to log in."

The reason was stated as an incompatibility issue between the keyboard and FileVault.

However, I was requested to enter my password to disable FileVault on my mac, which was the suggested solution.

I am not able to do this. (Same problem as before.)

I tried connected a USB keyboard to type in the password but that didn't work.

I do not wish to reset my password. I know what it is.

I am locked out of my mac right now.
Catch-22, guys. Little help?