Mesut Ozil accepts he must do better for Arsenal this season.
Ozil's form wavered in the second half of last season as he struggled to adapt to the rigours of English football.
"There is room for improvement in all departments," he told Bild.
"I am looking forward to my second season in England, because I can also bring in my experience from my first season.
"I feel great in England, and even more so in London and especially at Arsenal. When things don't run that smooth at times, there is criticism.
"Sometimes it's fair, and sometimes it's unfair. But I can judge my performances very well - and I also know how the coach [Arsene Wenger] and the fans rate it.
"There at least five teams competing for the title in the Premier League. But to me personally it's clear: I want to have maximum success in every competition I play.
"I've only been back with the team since Monday. But I believe that we have made good reinforcements. And I hope that those injury woes from last season do not continue."
