Roberto Firmino is not satisfied despite enjoying a prolific season with Liverpool.
The Brazilian has scored 26 goals in all competitions for Jurgen Klopp's Reds, including 10 in the Champions League.
He is joint-second in the Europe elite competition alongside team-mate Mohamed Salah and behind only Real Madrid's Cristiano Ronaldo, who has found the net 15 times.
The 2017-18 campaign has been the best for the 26-year-old since arriving from Hoffenheim back in 2015 but he insists there is still room for improvement.
"I am still a little bit 'restless', as I always want more, to grow and grow even further," Firmino told uefa.com, ahead of the Champions League final against Real Madrid on May 25.
"I am a little bit annoyed, because I always want more and I am never satisfied.
"However, you cannot beat yourselves up about these things all the time and you must always keep moving forward.
"It is my first season in the Champions League and I am one of the leading scorers, alongside Cristiano and Salah.
"I am pretty pleased and very happy with my performance and the entire team's performance and I hope to keep that going into the final."