In addition to what
@JustBabyMargo said, you will need to assist with preening, especially during a molt. The worse the beak is, the more you will need to help break up those sheaths.
CB is a skull deformity - there is no fix for it. The beak will continue to change up until the chick hits roughly six months when its bones are set.
It can be caused by genetics, trauma or poor position within the egg. Silkies, Easter Eggers, and Polish has a high rate of the CB. Since your is a Silkie, it's likely genetic. It is not recommended that you hatch eggs from a chicken with CB.
Regarding feeding, mash out of a deep bowl is great. You may need to play around with the thickness of the mash. My guy preferred an oatmeal at first and then as his CB progressed, he liked it soupier. Now, I do syringe feedings twice a day with a special food. It makes me feel better knowing he gets enough. I recommend checking their crop daily - make sure there's food it in. If you can do weekly weigh-ins, that's great.
Do reach out if you need help. I am always happy to chat with/assist other CB keepers.