I think the fact that you do worry and care is what will make you better as a breeder.
Yes, things happen that can be out of our control. But when one of your top priorities is the health and wellbeing of your animals, that's important. Sometimes sadly the best options aren't ones we want to think about. So while you do say toughen up, still keep that empathy that you show here too.
Às an aside...I had a discussion with a breeder who's incubator busted midway through a couple clutches. A few of the hatchlings across 6 clutches had kinks. Most were very minor. One was a gorgeous little albino gal. Hers were worse, but she still got out of her egg and had her first shed. Even managed her first meal. But we both agreed that even though she seemed like she may be 'okay' now, the risks of her ovulating and throwing slugs as an adult would be a painful death sentence.
You will need to make these hard decisions. But you'll be making them with the best intentions.