The Polish goalkeeper became a regular starter at the Emirates Stadium last season but insists that there are still areas of his game that he needs to improve.
Szczesny told The People: "My ambition is to get a bigger contract at Arsenal. I admire players like Paul Scholes and Paolo Maldini, the ones that spent their whole career at one club.
"I dream of a similar scenario. I hope that when we sit down to have a chat 14 years from now it will be about my two decades at Arsenal.
"My biggest problem is not enough focus in the games without huge stakes. I can't find the spark in myself. But when the stakes are high, I'm in top gear."
The 22-year-old is expected to start Arsenal's clash with Stoke City this afternoon.