I forgot the password and tried to change the password and changed the phone number and I have a computer with Google Chrome operating system and I want a solution, thank you 😘

You need a computer with Windows or MacOS. It cannot be done on a Chromebook.

See the steps here: link-> If you forgot your iPhone passcode - Apple Support

You cannot change the phone number, that is regulated by the SIM.

Do you mean you have a Chromebook? If so, you can't connect an iPhone to it as it will not run iTunes.

Explain very precisely what issue you are having.