Lost access to yahoo account

Hello, I have lost access to my yahoo email, ive always set it up to where when you log in, that my username and password are saved. Well ive been trying to log in lately and tried recovering it, but I dont remember my recovery email password! and also when it asks the questions like when have you created this email, I really have no clue. But if anyone can help at all that would be greatly greatly appriciated. Thankyou