Arsene Wenger takes a more mature Arsenal team to Everton’s Goodison Park on Tuesday to kick-start a busy Christmas schedule.
With three wins on the trot, the Gunners coach believes his team is in a fine form ahead of this crucial, busy period, which will see them play five games in 20 days.
Ahead of their midweek clash with the Toffees, Wenger told Sky Sports: "We have not lost for a long time and that creates strength and belief and trust in the squad.
"But it's down to the quality of the players. It's nothing to do with psychology. It's down to how well the players play on the football pitch. We have to not go too overboard on that (psychology).
"The strong mentality of the players is first down to the fact that we have more maturity in the squad. We have played for many years with a very young squad so, under pressure, they have been more vulnerable."
He added that the Christmas fixtures present Arsenal with the opportunity to improve their title credentials as they currently sit three points behind league leaders Chelsea.
"Of course a title challenge can be made or derailed in this period," he added. "When you look at the teams around us, you can see that the margin of difference between the teams has shrunk a lot."
Wenger was, however, quick to point out that Arsenal were taking each game as it comes, starting with Tuesday's match.
"I don't know (how many points will win the title). We go to Everton today. Let's focus on that and try to win the game. Win the next game in football is all you can do.
"What is for sure is that every game is like a cup final for everyone. We just came out of a game and we were 1-0 down and we came back for the sixth time this season."
After this encounter, the Gunners meet Manchester City, ahead of facing West Brom on Boxing Day.