The veteran has forced his way into the starting XI in recent weeks.
He said, “I try to prepare myself as well as I possibly can so I am able to play like I'm showing.
"I've been here for a long time and it's important to look after my body on a daily basis. The rest will come, because you don't lose the quality on the ball quite so quickly.
"I'm feeling good and I'm getting a bit more rest than usual as well."
Kroos added: "We have won several games or picked up a lot of points in the last five or ten minutes. It's important to believe until the last minute and have the ability to change games or score goals. We know the toughest spells are still to come."