I highly suggest not assist feeding anything that’s eaten on it’s own before. No ball python that size will starve itself to death if it’s not sick. If it’s sick, that issue needs to be addressed, and then they will eat again.
When you force restrain an animal it causes stress hormones to be released into the body. Those hormones have to be processed by the animal at a net energy cost. The post prandial response in pythons is unique and complicated. It already puts stress on the body just to digest a meal, let alone adding the effects the cortisol and other stress hormones to the mix.
Most ball pythons have no problem going an entire year without food. Let us see some photos and we can try to be more helpful.