But Care feels under no pressure to make any alterations to his game to keep up with Youngs.
He said: "The coaches haven't really said what I need to do, but I'll keep on playing my own game and playing the way that makes me look good.
"Obviously I'm gutted that I lost the place in the side, but I'm also chuffed for Ben at the same time - he's a great lad.
"He deserved his chance and he took it very well, but now it's a great challenge for me and for all the other scrum-halves. It's great to have that competition and hopefully whoever is playing best for their club will take the shirt, but there's a lot to play for.
"The decision to play Ben was fair enough. I didn't have my best game in the first test - not that many people did really - but then Youngsy definitely deserved his shot.
"But pre-season at Quins has gone really well and I want to hit the ground running this season.
"We have moved down to the new training ground so it feels like a completely fresh start with new facilities, and to some extent, it feels like a completely new club."