Ross Barkley says his season with Luton has forced him to change his game.
The midfielder is being linked with Newcastle and former club Aston Villa after a superb season with the relegated Hatters.
"I feel like now my standards have maintained consistent levels this season. I'm hoping that I do get a call-up, whether that's in the summer or next season," he told Sky Sports. "It's a goal of mine to get back in the squad. In the position I'm playing now, I feel confident that I can bring something to the squad. So I'm confident, and hopefully a call-up does come."
He also said: "The way I play now is a lot different from the way I played before in a more attacking role.
"I feel like I'm at my most confident when I'm on the pitch, I believe that I can take the ball in any position.
"Whether we get beaten or I give one ball away, it doesn't affect my game. I feel like now I've got a clear mind. I know I'm playing game after game now, I'm setting good standards for myself. I feel like now as a player, I've hit different levels through maturing over the years."