One of the most important but forgotten facts is that anyone, if wish, can recover his old Yahoo mail account. If you have access to your old Yahoo phone number and recovery email, you can read this post and learn how to recover Yahoo mail account. But, what if you don't have access to your Yahoo recovery phone number and email id. Well, not an issue. I have explained the steps to follow in this helping post - how to reset my Yahoo password without alternate email or phone number? Just do as mentioned in this post and you will be able to recover your Yahoo mail account.
https://www.yahoophonenumber.net/blog/how-to-reset-my-yahoo-passwor...