Bless you for adopting her and giving her a fur-ever home. Give her time and patience, and plenty of love, she will come out of her shell before you know it. A crate will help make her feel secure. We acquired a bully, (Jewel) from a breeder in Florida who had died and Jewel was crate kept. When we brought her home she did not want to leave her crate for anything. It took a few days to finally get her to come out on her own, and now she is OK and doing great. So just give your girl some time and she will come around.