Hmm
That's strange
I usually get error popups which prompts me to save, like when you exit
I'm afraid nothing can be done. Make sure to hit Save every once in a while
Kinda off-topic\ You are in the editor for 4-5 hours non stop? Wow
I often test or quit to quickly check things, which prompts me to save anyway
Good luck doing it all over!
But hey, doing things multiple times only makes you better, doesn't it?
Edit: Also don't Double post, just use the edit button you can find on the bottomright hand of the post