Dandruff and hairfall. Home remedies.

Qhen i was in scool means before 5 years i had thick hairs... but after that in just 2 years my hairs become thin... i now i have dandrff problem... which is refusing to go with home remedies. also i need to wash my hairs in 2-3 days because of oily scalp. now i have sholder length hairs but they are thinn...not thinnest. but yes, they are not like my old hairs. from last 1 month i am using pure coconut oil. still no luck in hairfall. before that i was using curry leaves oil. now the products that i am using for my hairs are. daily oiling with coconut oil. shampooing with garnier ultra blends precious herbs please tell me something to get rid of dandruff and hairfall. its ok if i dont have long hairs like before. but i want healthy thick hairs at least.