It could have been a Glitch, which seems to happen here a lot on Gag lately... I found this out myself and reported it to Gag and they promised to do Something different to change things in the future. However, 'In the Future,' @Catalie, Learn to Save all of your "My Takes," Or any Works that you have Busted your Butt on. One never Knows how this Goes. I Have Had to Learn a few of my own Hard Lessons here, dear, With losing some of My Best from the Rest and having to Rewrite and hoping it Was... Alright. Good luck and try Again, my Friend. xx
Sorry about it being lost, girl. I know how much that sucks first hand, as there was a period a few months ago over which I lost at least 1-2 very detailed, lengthy takes as well in the same way as yourself.
Since then, I write and edit all of my takes in microsoft word, then copy and past to GaG when I'm done. That way, if the glitch like what happened to you occurs again, I've still got a backup copy. 👌
There is no way you can get it back I think. I always write my mytakes in a word document and save it, then copy and paste it in the Mytake format as I really don't trust the saving system on here. It's never done me wrong, so maybe look into that next time you write a Mytake