LOST MY RECOVERY KEY

If one of your trusted devices is still signed in, you might be able to generate a new recovery key.

How to generate a recovery key - Apple Support

If this does not work or is not available to you, your only option is Contact Apple Support and see if Apple's support team can help.

From: How to generate a recovery key - Apple Support

- If you forget your Apple ID password and do not know your recovery key, you can try to regain access using your trusted device protected by a passcode.

- "You can [then] generate a new recovery key from Settings or System Preferences on a trusted device signed in with your Apple ID." See the article for details about how to do this on different types of equipment (Apple equipment only).

- Note that when you generate a recovery key, you can't use the standard procedure for account recovery as outlined in this support article --> How to use account recovery when you can’t reset your Apple ID password - Apple Support .

-In the end: "Using a recovery key is more secure, but it means that you’re responsible for maintaining access to your trusted devices and your recovery key. If you lose both of these items, you could be locked out of your account permanently."

- Read the article for more details.