Great job on this snake jaded, I'd say that makes you keeper of the month or some such. Its great that you didn't give up, remained consistent and diligent, and helped the snake help itself.
This is a great example not only of awesome care, but the resilience of animals and their persistence to survive. Its very sad that many animals end up in deplorable states or conditions, but continue to push onward. Its really truly amazing, and I'm sure the snake is grateful to now be on the mend to "rewarded" for its desire to survive.
May sound silly, but I've seen situations where animals know you're trying to help them in a dire state and when you'd expect them to be aggressive/defensive, they actually "let" you help them. Its pretty cool. Animals aren't as dumb as we think.