The Frenchman has acknowledged that he has been struggling this season, but feels he has turned things around during the international break.
The 25-year-old was whistled by his own fans at the Santiago Bernabeu earlier this season, while he hadn't found the net for France for over 1200 minutes.
However, he ended his goal drought for les Bleus against Australia last week and is looking back contentedly at the international break.
"This has been the most difficult period of my career. It has been 10 good days with the national team for me," Benzema told reporters. "It has been difficult for me, but I never stopped believing in myself. I never lost morale.
"It was good to score again for France and to do well in these two games."
France secured a spot in the World Cup playoffs by beating Finland 3-0 on Tuesday.