2FA DISASTER

I was automatically logged out of my Instagram account the other day. I cannot log back in as I don't have the password. I never set up 2fa for this account. Now it won't send me a password reset unless I enter a 2fa code or backup code, neither of which I have. I'm pretty much screwed on i? It is linked with my facebook, but I can't log in through Instagram using that either. Just keeps asking for backup code or authenticator code.