3 year old corn died and I feel terrible

I have been thinking about this post a lot. OP I can really feel for you. I'm really sorry. I also agree that it is easy to make mistakes and that we need to do our research.

I have bought one of the books and I listen to advice from enthusiasts that have 20-25 years experience. I didn't buy Daisy from a pet shop but from a snake lover with tons of experience. Everything he's told me has worked, although not 100% sure about the Aspen yet but also what he says might conflict with other people's advice. As other people have said here there are a few different right ways of looking after a snake but there are definitely some absolute no no's which will make your snake sick.

I personally don't think that you had wrong temperatures or basic husbandry mistakes especially because your snake had been thriving for 3 years. I would love yo hear an expert's opinion of what it could have been...

Daisy June 17, a butter motley corn snake