I agree with this. If I would have kept at trying to feed frozen thaw to my baby ball, he probably would have starved to death, but once I found live small enough, he grabbed it right up, and has now finally had 4 good feedings. I still try f/t, and he still refuses it.If it's refusing FT, don't let it starve to death--give it live.
You can feed really young hatchling snakes small adult mice. A lot of breeders start their fresh out of the egg babies on small adult mice and skip right over fuzzies/hoppers. That was what I had to do and it has worked out well. Just go to whatever store sells mice and ask for their smallest female(tend to me smaller than males).