Zarate hit the winner against Chievo Verona on the weekend.
When asked if he should change his style of play, Zarate replied: "I don't think so. It's true that before I never passed the ball, but I never pass it now either.
"The problem is that in the second year I did the same moves as in the first with the difference that they didn't come off.
"I am the same person and I am trying to do the same things. It's a question of confidence. In the first year I could take on anyone and go past them. This year I feel happy and I prepared well."
Finally Zarate put paid to suggestions that he intends to play for Italy.
"The Azzurri have many strikers," he said. "I would like to play for Argentina."