It's not so bad, if you manage to sink some significant enemy tonnage, like a Battleship or 2, I once got away with sinking an Italian freighter by also sinking a battleship, they even gave me a medal

if not, well....
Best not mention this incident ever again I would think, unless you like a warm sunny wall, a cigarette and blindfold of your choice....
At least you properly followed standing order number 1
BE MORE AGRESSIVE!!