Mikel Arteta declared Arsenal are "BACK" after their stunning 4-2 win at Aston Villa on Saturday.
The Gunners steamrolled Villa in the final minutes of the game to earn the victory and return to the top of the table.
Arteta said: "It's difficult now because it's been a rollercoaster and was very emotional at the end. I think we showed a lot of resilience character and quality. The context of the game was difficult, with the performance that we had against City and having to come here after less than 72 hours and then after 5 minutes you are down. Then you have to play the next 90 minutes like we are as a team right now.
"We had some difficulties in the first half collectively and individually we brought the level right down and we stopped doing the simple things right. At half time we said the moment is now, we have to raise the individual level, we have to look each other in the face if we want to come out and win the game because we can.
"Then we altered a few things and we produced a very strong performance. Probably we should have won it earlier than we have done.
"I feel it's right back with more belief than before because you have to turn performances into results. Against Brentford, we did that but we couldn't win it because of a decision - fine - against Manchester City we deserved more with the performance but the reality is that in football the games are decided in the boxes.
"Today we have to put something else and there's still a lot of things to improve, we have to be humble enough to see those things, recognise those things, work on them because we cannot those bigger margins. You don't have to produce as much as we do every single game to win games. Smaller margins should be enough to win games in this league consecutively and we have to improve that."
Gabriel Martinelli jumped from the bench to net Arsenal's fourth goal.
Arteta added: "It's not dropping him! He's played every single minute. You don't see players at his age doing that. We have three 21-year-olds leading the front line. It's unheard of. Leo (Trossard) has been doing really well and we needed impact. I was really worried about the last 25 minutes of this game after everything that we put on Wednesday. We needed energy and we needed a player that could do that. I thought we did it."