If you enabled a recovery key, and no longer have it or know the password then your account is lost to you. There is no account recovery process when you enable a recovery key in iOS 14
See -> How to generate a recovery key - Apple Support
”How to generate a recovery key
With two-factor authentication and an Apple device, you have the option to generate a recovery key to help improve account security. If you need to reset your password, you can then use your recovery key to regain access to your Apple ID.
A recovery key is a 28-character code that you can use to help reset your password or regain access to your Apple ID. While it’s not required, using a recovery key improves the security of your account by putting you in control of resetting your password. Creating a recovery key turns off account recovery. Account recovery is a process that would otherwise help you get back into your Apple ID account when you don’t have enough information to reset your password.
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. With that in mind, it's important to keep your recovery key in a safe place. You might want to give a copy of your recovery key to a family member, or keep copies in more than one place. That way you always have your recovery key when you need it.”