Rehoming puppy (Tucson)

8 month old puppy needs to be rehomed we aren’t home enough for her to get the attention she deserves.
She’s sweet but extremely shy and nervous.
We have had her for 2 months and have tried to get her out of her shell and put weight on her.
She has an extremely fast metabolism we feed her 3 1/2 cups of food daily.
She has been around my 4 year old.