my account wont activate, because its using an old email

I have an old email and my icloud email to activate my new iphone, but I cannot reactivate my old settings because it wont allow me to use my icloud password and I dont remembrer the old password to my other iphone old settings. Its not accepting one universal password, when I try to reset the old one, apple makes me wait 14 days to reset it again and we keep going in loops just to get the iphone14 up and running