Some info for you in case it will help you out with the anxiety over the feeding - Baby garter snakes can weigh less than 3g and have a much faster metabolism than ball pythons - it still takes 14 days for them to starve. Your snake on the other hand is much bigger, is a species with a slower metabolism, and has recently eaten a meal. A young ball python not eating is a concern, but unless it is already very severely underweight (very triangular in shape ), it is not an emergency. The poor little guy on this thread was very urgently underweight and shows a hollow-looking underbelly (*spoilers* he gets healthy!) https://ball-pythons.net/forums/show...ny-ball-python - this is emergency-level skinny. Yours on the other hand should be in no immediate danger by not eating, so just make sure all husbandry is on-point, and then let him work on his own time. It's not the same as mammals'.
Edit: just to make sure I'm clear though, it does not mean to ignore not eating. The biggest concern about not eating is that it is a symptom of other issues that will harm faster than not eating itself. Thus making sure all husbandry is right. Once everything else is right, the not eating symptom should resolve itself given some time. People just get worked up and don't work on the snake's time scale.