guga
12
woah…that sucks
sorry to hear that
i usually backup stuff once in a while(meaning once a year/two) but pay a lot of attention in making sure i don’t do things which could potentially be armful or at least i try not to, unless needed…and that’s when i know i’m asking for trouble 
as others have said, try and look at the bright side of it: this will ‘force’ you to start fresh and sometimes is good. one will never know when things could go wrong…sometimes when i’m in the middle of something i can hear that voice saying (the one that whispers into one of your ears
): ‘before you start messing around with stuff, just save it, do it, c’mon, save what you…ooopss, see, i told ya!’
and that means, just deleted/overwritten 3-4 hours work (and this still happens once in a while…)
you could also look at this thing in a different way: how many times you’ve actually gone back to what you did 2 years ago? was it really that meaningful? (apart from being a trace of what you did at the time) if you have not been using that stuff, then it means you don’t really need it or it has no value anymore, a bit like thinking of all the stuff we buy and then, after years, we don’t even remember we had it. things do live in their moments and these moments don’t last forever (sorry if this could sound a bit sad to someone…)