I don't have access to my yahoo mail, I changed my phone and forgot my yahoo password and both are security questions are wrong. but I have access to yahoo on my Mac , if you can send me security code in my mail would be great.
Yahoo no longer uses security questions, they may ask for them but they no longer work.
Unfortunately, if, when you created the account, you have not registered an alternate recovery email address to which you have access to receive an account key, you cannot prove that you are the account's legitimate owner. Hence account recovery is absolutely impossible and there is no way around it.