I suggest you contact support so they can help you transfer all your stuff to a non-Facebook Spotify account that uses a username and password to login:
If you get an automated reply email telling you to check the help section or the community, you need to reply back to it, even if it's from a no-reply address.
Support usually replies within 24-48 hours.
Help others find this answer and click "Accept as Solution".
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Note: I'm not a Spotify employee.