Gabriel Jesus is viewed as the Gunners' senior striker.
But speaking after Brazil's match against Argentina he told reporters: "There are things that bothered me a lot in the post-2018 World Cup cycle. I was younger, I had a different mentality.
"Today I am a more mature man, more educated, a family man.
"I understand football is a priority for me, and I know I need to be well to do my best, especially for Brazil.
"There are things that I can't control. I train, I look for, I try, I move, I help the team.
"I believe that goals are not my strong point, but I score goals, I'm there to score goals. I did so much in the national team.
"When I score goals again, it's going to happen. It's work. I work quietly, I'm not one to respond to criticism, I'm not one to be happy with praise. I was, I won't be anymore."
