There is no ctrl+z in life, what we can only do is to prevent ourselves from ctrl+y-ing the same mistake, thus a good decision making is of utmost importance
There are also no ctrl+n and ctrl+s in life, so we must always be fully equipped and updated with best performance engine so that wont crash, its once and for all, now or never
In cases thing goes too wrong that ending the task is seemingly endless and are too heartbreaking to be done and to be faced, the best solutions out perhaps is to alt tab, switch off and get some real rest before restarting everything from scratch afresh
perhaps its time to lay my eye on getting a new computer? :) ctrl+X the file, really the wise choice? is this the best you can do? are you sure?
look before you leap what is seen might cannot be unseen anymore