I am lost, what is Bitcoin account? Do you mean a Bitcoin account that belongs to a centralised exchange and then borrowed out to you? Because even with passwords and 2FA, that wallet address isn't even yours to begin with, the private key belongs to the centralised exchange.

If somehow you forget your password you can get it back by requestion for a password change, and a link will be sent to your email address you used to create the account from the beginning.

Activating the 2FA code on this forum is the same thing as activating 2FA security everywhere else, the settings is under your account profile settings, copy and paste the code into a 2FA app and fill the OTP, viola.