Ground is Pin 9 just to make sure :P but yes that +
sudo nano /boot/config.txt
--> add the following line to the end of the file:
helped me a lot THX SmuPi
just to give another hint
Typically you want to see your device booting on the TFT. I.e. your boot console must be mapped to /dev/fb1.
Open /boot/cmdline.txt as root:
As I understand it, the tool you accidentally cancelled is known as piwiz.desktop (also known as the "First-run Wizard"), and it is located here: /etc/xdg/autostart/piwiz.desktop.
You might first want to check to see if it's still there, and re-start it if you can.
Another alternative is to re-flash your SD card using rpi-imager. Follow these ...