I forget my iCloud password

You’re presumably posting this w/ your iCloud (AppleID) credentials …

… so you MIGHT be able to set a new password from a trusted device w/o actually knowing your old (current) password

(And if this isn’t possible … just keep following-down the same instruction set for what to do next)

Follow the instructions here:

If you forgot your Apple ID password - Apple Support

Hi there!

If you forgot your Apple ID password, this article can help

If you forgot your Apple ID password - Apple Support

Apple cannot reset the password for you but yoy can try the reset password options they have to recover your account.

Depending on how your Apple ID is set up, you might have the option to request for an account recovery if methods to reset the password has been exhausted

How to use account recovery when you can’t reset your Apple ID password - Apple Support

If you are asking for an iPhone replacement, you can Contact - Official Apple Support for that