Stop and take a deep breath. You need to completely leave him alone until he eats 3 consecutive times. No handling at all. This could be three weeks or 2 months. But if you leave him alone now it will be less time for him to start eating.
As for breeding i seriously think you need to stop and take a deep breath there too. In my opinion people need to do serious amounts of research before breeding. Like what will you do with the babies? How will you house them? What will you feed them? Incubation, egg cutting, common breeding problems. Etc etc etc. its important that you don't go into breeding without looking into things. And it sounds like you need to get basic things down first like why the baby is nippy. What that smell is, and how long acclimation periods should go for. Get the common sense ball keeping down first and then slowly approach breeding with a level, educated head on your shoulders.
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