Hi,
I missed the "eating" part as I was admiring the pretty animal. I have a coasty myself and she was a very slow starter with food. She's still bizarre in certain ways. She was so strange at the beginning with feeding that she would only eat if I held her in one and and put the snout of the prey up to her nose. She'd gently open her mouth and take it.
I've used live rats, F/T rats, F/T chicks and quail and F/T rabbits.
Sometimes she'll only coil and not bite. Other times she'll bite and coil and then not eat.
BUT, when she's on she's on. She started small but she's full sized now.
Keep at it and go with Nicks advice.
My girl when she was young back in 2014 when I got her. She's a mutt. Coastal and likely jungle and or something else, nobody knows.
This is summer 2019 at over 7 feet.
They grow at their own pace. You'll end up with something 6 feet at minimum and possibly 9 if she's genetically predisposed to size.