OKAY, that's really useful feedback - I will return to the bug-fixing mines as soon as possible to iron things out.. I'm a bit torn on whether to take this build down while it's buggy and put up the one I know is completable. I might put both up with explanation (it sounds like you very much deserve to finish it!)
You're right, that is the final bit, and it sounds like you absolutely do understand the recipe (if you get it right you should get neither message and health should be fine). Odd re the regenerated language, I'll check that (it might not be re-rolling it properly on re-start - it's WATER + CONTAINER for the trough). I'll fix the save location thing asap too, that's easy to solve 👍
I'm glad you got some enjoyment from it and I apologise for the frustrating end(!)