my sim does not support any of the following carrier

See this Apple articles below:

Manually update your carrier settings on your iPhone or iPad

https://support.apple.com/en-us/HT201270

Set up cellular service on iPhone

https://support.apple.com/en-gb/guide/iphone/iph3f11fba92/ios

How to unlock your iPhone for use with a different carrier

https://support.apple.com/en-us/HT201328

a sim card is something one gets from the carrier one sign up with, they will give you a sim card when you sign up with them and if it does not work it's because your iphone is sim locked to another carrier in which case read

How to unlock your iPhone for use with a different carrier - Apple Support