Locked out of acct

Hello,
I have been locked out of my yahoo account. It had requested that I re-enter my password. Because I always stay logged in, I have forgotten it. I tried to reset it, which appeared to have been successful, but it is still telling me the password is invalid. I don't have acces to the alternate email nor phone number anymore. When I put in current phone number and enter the access code, only my sons account comes up...not mine. How can I gain access again, it's been over a week since I've been able to check my mail.