I’ve had my yahoo account for awhile. My mom has made it for me when I was young, but I...

I’ve had my yahoo account for awhile. My mom has made it for me when I was young, but I had never used it but for a few things. I do not remember the password and the number that was linked was my moms phone number and it is disconnected. She changed her phone number. I do know the number that is linked to it now it’s just I have no way of getting a reset code from it since it’s disconnected and she has already changed her number. I may know the security questions, they were made long time ago by my step mom but I could tell you information about the account to prove I own it I have my Snapchat connected through it and have sent recovery emails to it that I need to get connected to. If there is a way I could get help to recover my account that would be great thank you..