When you enable 2FA you are on pretty much every service asked to download recovery-codes, and save them somewhere safe. Did you do that, and if not, why not?

Also: Didn't you backup the 2FA codes somewhere else where you can "sync" them in?

I use Bitwarden Authenticator for 2FA (part of Bitwarden Pro) and it syncs my 2FA codes to all devices where I log on to Bitwarden. That way I avoid a single point of failure. Consider that the next time around :)

As a meta-comment on this thread itself... That even people here on HN can enable and make use of 2FA incorrectly is the reason it will never be a viable way to protect accounts for "everyone and their grandmother".

It's too complex, and we need something better.