Forget my password and security questions

Hello,
my self pintesh patel from gujrat- india
i need ur help for my yahoo id, actualy i forget my password and security qus. i m trying last 2 years for racover my password but i cant, so tell me how can i recover my password plz help i changed my mobile number my old mo. no was ********** so cant receive any code on my old mo. no plz help if u hav any requir document ya other email id i prove it