Yea..I know exactly what you mean. It's frustrating...

Try to get to know what they like best that's all. Some will only eat if the f/t mice is left in their tub, some in their hides......Sometimes feeding them smaller size meal will help too. I offer an appropriate size rat for my picky mid-adult ball python, but she refuse to eat it. Then when I offer rat weanling, she snatches those immediately. Hehehe. Good luck buddy! They'll be eating again in no time.