This is typical hatchling behavior. What you should do is both of the above recommendations excluding the 10 gallon tank. You really need a 6 qt shoebox tub with two tight fitting hides and a substrate of 100% cypress mulch or Aspen shavings. But since you are dealing with the 20 gallon tank and the python has already attempted to feed in there I would be reluctant to swap her out into a new enviornment at this stage of the game. Live hopper is the prey of choice with all hatchlings to get them started. Cover the exposed sides of the tank and clutter it up with crumpled paper towel. No handling at all and try feeding at night and in a darkened room. Hope this works.