Hi Missy
You seem to be winning with mum,it takes time and patience, she will be an old hand next time she kids.
It is a shame that the little Billy is not well,hope he manages to pickup, I would bottle feed him and sibling, or top up the sibling if you want to leave with mum.
One thing I have learned about goats is they are not text book animals, I think they must read the books, say to themselves ha, that's what they think and throw the books away lol
They sure keep you on your toes.
All the best with them
Angie