Martin Odegaard opened up after Arsenal slumped to a 2-0 loss against West Ham United on Thursday in the Premier League.
Arsenal suffered their first home defeat of the season despite racking up 30 attempts on goal and along with 74 percent possession.
“I think we created more than enough to score goals to win the game and it was the little details and the little last pass or the finish that was missing today,” he said afterwards.
“We have to learn from it and make sure we get sharper and better in front of the goals.
“The goals we conceded were too easy, so definitely in front of the goals, inside the boxes, that’s where the games are decided. We weren’t good enough today.”
The skipper was disappointed that Arsenal were not able to round off the year on a high at home.
“It’s a tough one. We always want to give the fans a good performance, we always want to win. It was the last home game of the year so we wanted to finish off in style, but today wasn’t the day and we have to look at ourselves and we have to learn and move on,” he said.
“It’s another game in a very short time so it’s no time to feel sorry for ourselves, we have to move on and learn.”
Meanwhile, Arsenal manager Mikel Arteta said: “I think we've been very, very consistent, especially with performances. We could have had more points for different reasons. But it’s where we are and as well we are through in the Champions League in a really convincing way.
“We have managed three and a half months with some big injuries as well and that's credit to the boys, so I'm really happy with what they're doing. We can improve, yes, we want to evolve, yes, and that will be the target for the next coming games.”