I got her a couple months after she was born. She has spent that time (a year now) in a 20g tank. I don't believe housing is the issue. As for feeding her, I have tried many things but she has always given me problems with f/t. If she takes, she usually does it when I drag the rat on the ground in front of her.
The reason I moved was because of college and after this next week, I'll be moving home again and will have access to live rats. If she doesn't eat any of the remaining 2 frozen rats I have by then, I was actually already planning on seeing what she would do if I tried live.