First of all, please DO NOT leave a live feeder alone with your snake for that length of time. Nothing good can come from leaving your snake unattended with a live prey item for that long. Just give her a break, you are trying to feed her to often and she sounds really stressed out. Leave her alone for a week with no feeding attempts at all. You can try to feed her a slightly smaller then normal prey item after you have given her time to relax from all the feeding attempts. You may even want to try a f/t or prekilled prey item when you attempt to feed next time.