I think that I made up for 10 years with no problems. I have kidded out hundreds of kids and have had to help a few that were breach or hiding a leg. I have heard about the headless goats but have never had one, it wasn't fun. And the doe wasn't pushing any more either so those kids weren't moving unless I pulled.
For two days I had her on CMPK, propylene glycol, and slurry of oatmeal, peanut butter, probiotics and molasses. She wasn't eating and she wasn't getting up. After delivery I gave her more CMPK, calcium gluconate, Thiamine, and Banamine. It just wasn't enough.
Sorry you had to go through that. Maybe it is better to get the worst out of the way and things will go better. As you said, sometimes you get a rough time after having years of pretty smooth going.