Oh dear! Been there, done that... (short answer) No. Its more like "shit happens!"
Even with best of knowledge and abilities, what once was in memory (RAM) will be reused pretty quick, and if you chose to not autosave regularly, there won't be much left, and even if there would be, the work to get it into proper shape might easily exceed the amount of work to recreate it. Furthermore: From my own experience i would say: most of the work you already invested is not lost. It is in your memory - in one form or another - and the sooner you begin the process of letting go, the easier you will find the recreation to progress smoothly and taking less time than the first creation. So for now: Take advantage of "short term memory" and things like that. For the future, you might invite different consequences. You could think again about the autosave feature. I - for myself - even began to configure and use a sort of time machine, which allows to go back in time (basically using zfs snapshots). But even that has limits defined by usable space on the storage media. So i had to limit this to specific areas, where i would benefit most from it. And finally: You could fight the rising of bad habits (like involuntarily clicking on warning boxes, or such...) because - as we know - the PEBCAK. To me, your question does ressemble - in some way - to the guy, who would like to undo his divorce, while not wanting to change its behavior towards members of the other sex. Not much, you can do, but remorse. ;-) Best of luck for the experience, that is ahead of you now! DdB