I cannot update. It doesn’t even give me the option, it just shows tht the update exists on the interface with no way to confirm it.

Hello ~ The message at the bottom says you don’t have enough storage to update. It seems you are also on a hotspot and using a VPN. Start here by clicking on below…

How to check the storage on your iPhone and iPad

Update your iPhone or iPad - Apple Support

If your iPhone or iPad won't update - Apple Support

~Katana-San~

If I can add my two cents to what Katana-San correctly suggested:

To perform an update procedure wirelessly, you need to connect your device to a reliable and fast Wifi Network with internet access (no cellular data, unless you use a 5G network, no personal hotspot on your device, no VPN connections, no low power mode are admitted). AND I suggest that you keep the device plugged into power during the whole update process.

If you don't have a wifi network with Internet access, "borrow" one from your relatives/friends/neighbors, or ask for help at an Apple Store or Authorized Service Provider or Authorized Reseller.

Do not forget to create a full backup of your device, before any updates.

Regards

Giulio