Offering too often can stress them out, I would only offer once a week at most. I blast my feeders with a hair dryer before offering so they are nice and toasty, maybe something to try?
Since this is a young snake, is it in a smaller setup? "Good" doesn't really tell us anything for temps and humidity btw, especially without knowing how you are taking the temps or where in the enclosure. Not saying that's the issue but for future posts, as much info as possible is useful for others to help.