I have a shy feeder too, but he's gotten a lot better about it. Took about 3 months, tho.

Basically, if yours wants to be left alone, leave her alone. If she's got a hide that she likes to stay in all the time, let her have that hide. That's what ball pythons do, they hide. If she's constantly rejecting frozen/thawed, try live mice.

If you got a snake cause you want to handle it, get another one. Let your ball python settle in and get comfortable. If you want a snake you'll see, get a corn snake. If you want a snake that tolerates being handled, get a milk snake.

I'm so enamoured with my little boa, I think I overhandled him and he stopped eating. So I had to throttle way back on it and be really careful about taking him out of his cage and stuff. He likes to wrap really tightly around things and I think I was a little too rough extracting him a couple times which probably put him off his feed. He's better now.