Buy a good quality sheep feed mix from a feed mill, not a farm store. Plenty of fresh water 24/7. Keep plenty of fresh straw in the stall to keep it warm and dry. Work with the animal daily to form good habits and training while it's still very young. If it's really young and still needs milk, be sure to use a good quality milk replacer for sheep only. They need a super rich formula that you can not get from other milk replacers. Best of luck! Raising animals is great for kids, they learn so many life skills doing this. Patience, empathy, kindness, perseverance and more.