You fight like you train.
The courageous man is the man who forces himself, in spite of his fear, to carry on.
You must be single minded. Drive for the one thing on which you have decided.
Attack rapidly, ruthlessly, viciously, without rest, however tired and hungry you may be, the enemy will be more tired, more hungry. Keep punching.
continue to advance until you run out of ammunition. Then, dig in.
Nobody ever defended anything successfully, there is only attack and attack and attack some more.