I would recommend that you reflash the SD card with the "Raspberry Pi Imager".
And document user name, password, hostname.
As for Wi-Fi credentials (SSID and password) you can only connect to a 2.4GHz Wi-Fi network with the RPi Zero.
And if it has connected to the Wi-Fi and got an IP you should be able to connect to it with:
<user name>@<hostname>
and then supply the password when asked for it.
And to test if it has got a IP and is broadcasting the hostname (via mDNS) you can also try to ping it:
ping <hostname>
The names within <> is the one you have entered when you created the SD card.
Check out the FAQ section for more tips and follow this when creating the SD card
https://discord.com/channels/818384379197784084/1193923435789824050