The Spaniard led Serie A side Como to a respectable 10th-place finish during his first season in charge and explained that being in the dugout contrasts hugely from his playing days.
Fabregas told GOAL.com: "You keep learning. Day to day, you find out new things and new ways. But definitely it's a process that's going very fast and I'm learning a lot. It's just about pushing yourself to new limits, be very open to learning and listening. It's a new world, you are not a player anymore, it's about learning and analysing in a different context."
The former Spain international played for London clubs Arsenal and Chelsea during his career in the Premier League and is happy with the progress that his two old teams are making.
Fabregas explained: "Both of them are doing well. They are probably in different stages.
"Arsenal after six years [with Mikel Arteta as manager] are trying to build and get into the market, making players from the academy grow. They have a good structure around the team, they had a lot of injuries this year to key players. But hopefully it's coming, what they've been trying to build over the last six years.
"(Chelsea have) invested big in young players and now, slowly, they're getting the grip of playing together after making mistakes. I always say that young players need to make mistakes but then be trusted to keep playing, to understand what a team is.
"You can only win what's in front of you, I know they were very superior to the rest of the clubs in the Conference League, but they were there and won. They took it seriously, it was a good season. Now they need to take a higher step next year."