Writing on a Wall

Oh, its been so hard, but your luck could change if you'd just roll up your sleeves.
We had tried our best to warn before, but it didn't get you far.
Now we're here again, with a wish to mend, your agonizing scar.

Open eyes young man, vigilantly hands and a heart prepared for pain.
You will lose much more in this vicious war,
Do we sing in vain?
Does the fact remain "There is nothing to be done?"