How to Recover yahoo mail without still having old phone number or alternative email? [on hold]

hello everyone can you help me to recover my old yahoo mail? i forgot password and i tried to enter what i remember but all it's wrong. i try to recover it but i lost the old phone number and i don't have alternative email, so now i still can't access it and i try to research anythings but it doesn't work, or need to hack it? it is very important for me and i really want get it back .what can i do?