Do you have dandruff?   If yes it should be first cured. Twice in a week do shampoo and hair conditioner. Mild shampoo If dandruff  let me know there are very good methods to treat dandruff and increase hair growth

Correction in diet lifestyle is best way to deal with hair loss along with Ayurveda medications according your body needs. Shampoos like artificial factory made products are not answer for these problems. Apply hair oils and medicated oils on hairs and hair roots. Avoid overeating of salty spicy diet green chilies salt udada dal fermented food paneer etc. Take online consultation directly for medications and correction in diet which creating this problem of hair fall.