Just give it another week and try again. In the meantime, make sure your husbandry is correct. 90 - 94 degrees in the warm side, 80-84 on the cool side, and about 50% humidity. Make sure he has two snug fitting identical hides. Depending on the size of the enclosure, you may have to put some crumpled up newspaper in to make it tighter and more secure for the snake. It sounds like his strikes may have been defensive strikes and not feeding strikes. He is probably just stressed out. No need to injure the rodent. Just monitor the feeding and remove the rodent if the snake seems afraid or stressed out by it. Don't leave it in there unattended.