Fabregas has taken La Liga by storm, having produced some industrious displays since returning to his boyhood outfit after an eight-year spell in England with Arsenal.
Suggestions that he would be forced to settle for a place on the bench have been wide off the mark with Fabregas having now established himself as a fixture in the Barcelona midfield.
However, the former Gunners' skipper is adamant that he still can further improve to become an even better footballer.
"I'm not happy with my own performance against Real Madrid last Wednesday night. I have to improve a lot," Fabregas was quoted as saying on the Barcelona website.
"Although I was brought up to play football the Barca way, this is the boss' system and it's not easy to get it straight away."
"When I play further forward, I have more mobility and that's a role I can handle. However, further back I need to have more discipline and I currently miss the patience for that."
24-year-old Spanish international Fabregas has played 14 times so far in the Spanish La Liga, netting nine goals for Pep Guardiola's side.