I’ve got horrible skin on my hands and feet, my heel’s crack and peel off, the balls off my feed crack and bleed, ewwww. And my hands aren’t much better (my knuckles crack and bleed in the winter). Probably down to doing lots of wet stuff outdoors (sailing, cycling).
For hands:
Body shop hemp hand protector, it’s greasy but it absorbs eventually (don’t go near your keyboard or smartphone for a while!) and once the cracks heal you only need it a couple of times a week to keep them soft.
For Feet:
My OH’s diabetic and got some palm (carnuba) wax foot cream. Which is great, although not cheap. I’m not entirely convinced it’s any better than vaseline but it does work.