How is it going? Were you able to find the procedures I gave you to join me in the remote session?
Going back to your problem, since you are trying to recover a Yahoo Mail account, here are the steps that you can follow.
Yahoo Mail Recovery Procedures
Please use the link below and reset your Yahoo Mail account password.
Once the password ***** ***** try to sign into the account.
In the reset process, you will be required of your recovery information which you mentioned you no longer have access to.
After checking further, there is nothing else that can be done in this case. Unlike before, Yahoo Mail provided a recovery form wherein the user is able to contact Yahoo, provide proof of identity and when verification is successful, Yahoo will provide a link to create a new password. That form is no longer available now.
Your last option is to contact Yahoo through the numbers below but this requires additional payment since this is Yahoo's premium support. If you are calling from outside USA, charges may apply:
You can also subscribe to Yahoo Mail Plus support here:
Thank you and I hope that helped. If you need further assistance, please let me know so that I can assist you further.