Severe hairfall. Ho jate h sir helpme!

Sir I have severe hairfall from last 4 years it's started from when I was in my class 9 in October month due to dandruff to mujhe lga jab dandruff jaega to thik ho jaega but sir it worse but meri hair density kabhi kam nhi hui hnahi mujhe baldness aaya but sir jaise jaise time badh rha meri problem badthi ja rhi h Mere baal pure thin ho gye h dry and frizzy too Meri baal jab jhadte h to unke end mai kuch white sa hota h jabki mera dandruff ab bohot Kam ho gya h pehle ke hisab se. Sir bohot heavy hairfall ho rha . Mujhe halka ab mere right hair side receding hairline bhi aa. Gya h Maine abhi 1 doctor ko dikhaya h to unhone mujhe kuch medicine and shampoo and serum diya but lekinsirf sunkar Sir meri problems kya h kyu h kuch samjh nhi aa rha . Ye hairfall kis wajh se ho rha h please mujhe koi btaye aur isse thik kre kyuki mere genetics ache h . Agar meri genetics bekar hote to his tarh mere baall jhade h ye 4 saal mai ganja ho chuka hota lekin mere baal wapas regrow ho jate h sir helpme