Hi my name is ***** ***** I will be the expert working with you today to help and resolve the problem you have posted.
The yahoo email is associated with 2 things and email and a phone number do you have any of them any one of them then it could be retrieved or else there is no other way you can retrieve your yahoo account.
Please note: If the yahoo account has not been used more then 90 days the account gets terminated and cancelled and it ever gets wiped off from the yahoo server.
I hope I've provided the information you were seeking. If you have any question feel free to ask. Please provide a rating by clicking on the stars on top right of the page and hit submit. Feel free to ask or reply me so that i can continue to help you answer you question further. Thank you.
I hope its has not been more then 90 days which you have not logged in to the account?
you can try these options to reset your password
Alternate email address