You were in the aphrodite’s cabin so you didn’t how to fight properly.Sure you own a sword but you almost killed yourself with it.You realized you should know how to fight since a war is coming.

So you asked Luke to teach you how to fight.It was an Annabeth’s ideas since she is close to him,you refused at first but Luke the best swordman in the camp.So you accepted it.

“you are so bad at this”luke sighed,as he fixed your posture and put the sword back in your hand since you droped it.