Arsene Wenger has been 13 years in charge of Arsenal and is desperate to end the season with some silverware after recent barren campaigns.The French coach, who turns 60 later this month, is now the longest-serving manager in the history of the Barclays Premier League club."I question myself every day," said Wenger."I try to assess my performance with what I do and on a positive note, and ask 'How I can be better? How can I improve? How can I get this team to achieve what I believe is in the team?"'Wenger added: "I have not exceeded my expectations because I always expect much more."My expectation is to win every single football game I manage and I did not do that, so I can never exceed my expectations."There are still more targets to achieve."I believe we have consistently managed to be at the top level, within our resources and improving our structures."The club is on a new platform and to reach many more targets."I believe our structures - new stadium, new training ground, a very young team, a healthy financial situation, we play at the top - means we have all the basics to be successful."But of course we want to win trophies because we have worked very hard with this team to be where we are."It is down now to us to win the Premier League, the Champions League - those are our targets."Wenger reflected: "We were close to being crowned, but that is what is still to achieve."Of course it drives me on, but the competition is very high with all the big clubs you have in Europe."