I forget my password to my phone. Iphone 7

If you've forgotten the passcode/passcode to unlock your phone follow the steps at If you’ve forgotten your iPhone passcode – Apple Support (UK)

If you've forgotten your Apple ID password, then instead follow the steps at If you have forgotten your Apple ID password – Apple Support (UK)

There's no password recovery, there's a password reset: If you forgot your iPhone passcode - Apple Support

Your backups can be restored after the reset to recover your data.