This is normal for baby ball pythons in a new environment. Don't handle her, leave her alone, only bother her if you're changing the water, and offer food every 7-14 days. You can leave the meal with her overnight, since she might prefer to eat in secrecy. Make sure her enclosure is in a quiet part of the house, and that the setup is correct. Make sure temps and humidity are good, and that she has enough hides. Be patient!