Nani admits he must do better at Manchester United after penning a new deal last week.
The midfielder agreed a new five-year contract and is now in his seventh season with the club.
"I look to do better than I have been doing all these seasons," he told MUTV.
"Individually and with the team as well.
"I learn one thing at this club - every season you have to have the ambition to win a trophy again. I want to win again. I think all my team-mates think the same. I'm focused on the league and the Champions League - all the competitions we are in.
"I'm so happy to be here for the next years. I think, now, I have all the conditions to work and focus at the club on what we want to achieve."
