Juve thrashed Sassuolo 7-0 on Sunday.
"Sooner or later the hat-trick had to come. I am happy and calm working," Higuain told Italian television after the match at Juventus Stadium.
“When you work, the results come. When I wasn't playing before I was still happy with the performances. I needed to work hard and now the fruit of it is showing.
“Now it is important to have five months on top form. We have taken home an important result and now we think about Friday."