How do I reset the screen resolution of my Realme 7

[jez-]

I changed the resolution to 500x1080 using the android app "pixels" and restarted the phone by accident and now I cant get past the lock screen as it needs my pattern password to get in. What has happened is that the screen is cropped so far, there is no way I can input the pattern as the grid is not even on the screen anymore. I tried using USB debugging to unlock the screen but all i got was

"
.\adb.exe shell rm /data /system /gesture.key
adb.exe: device unauthorized.
This adb server's $ADB_VENDOR_KEYS is not set
Try 'adb kill-server' if that seems wrong.
Otherwise check for a confirmation dialog on your device.
"
I also tried to reset the screen size but that didnt work either:
"
.\adb.exe shell wm size reset
adb.exe: device unauthorized.
This adb server's $ADB_VENDOR_KEYS is not set
Try 'adb kill-server' if that seems wrong.
Otherwise check for a confirmation dialog on your device.
"

I would really appreciate any help as I really need to at least get my files off of the phone (i have no backups)

Thanks