Help me achieve soft skin!! Please read the complete passage.

I'm a dry skin girlie. My skin gets dry and rough as soon as I step out of the shower. Ofc i apply lotion everyday and lotion keeps my skin moisturized for the better part of the day but by then end like at night when i change into pjs I see little white flakes. Now, i exfoliate regularly too.

So i need a "hack" or grandma's secret or something like that. Don't recommend me products (i might not able to buy them or they might not be available where i live) don't give me any dermatological advice because I've watched dermats videos on youtube. I need something unknown, like ancient skincare, something that can actually help and cure my dry skin problems!