Advice for my early separated puppy

Hello! I have a 15 week staffy pup that I has lived with me for a week now.

She was separated from her mother at 6 hours old and raised by a veterinarian. Her first three weeks she spent in an incubator. She has a cleft lip which the breeders felt was a waste to raise.

We are having problems with her lack of boundaries and social cues around our other dogs. She has a lack of bite inhibition and her desperation for food has meant she needs to be fed in a different room and has to be in her pen while we eat so she doesn’t create tension with the other dogs and is in a safe place.

We have tried to teach her basic commands and hand feeding. Unfortunately her lack of bite inhibition means hand feeding is also very difficult since she never got to experience a mother. These are very common issues we’ve found in puppies who are separated early. Are there any specific training methods for puppies like her?

Also to add she is only 10 pounds and extremely tiny for her breed so we worry development wise she might be behind others of her age