Lacie won't eat

[LacunaCobra]

hello all! I have a royal python that's about 15 months old. I've had a lot of trouble in the past getting her to eat. Live anything is never an issue, but I don't want to go that route with her again... I had an awful time getting her switched over, but she just doesn't seem the least bit interested in frozen. We've gone thru 4 already, and I've tried different techniques -- turning off the lights, putting her in a smaller critter keeper, various times of the day... you name it! She just turns her nose up! She struck at one, but ended up gutting it and didn't want anything to do with it after that. And at this point she's starting to go into another shed so I'm gonna hafta wait even longer. I don't know what to do with her! She's really being a brat, but I still love her! Is there anything else I can try? Is there a general length of time that you should keep the mice for so they're fresher? What's a good amount to get at one time? I know they can go quite a while w/o eating, but I'm still worried about her. Any advice would be great!