Silva has earned widespread acclaim this season after adding a goalscoring edge to his outstanding passing vision, helping City to the top of the Barclays Premier League table.
"I am enjoying my best form ever - including my time with Valencia," Silva told The Sun.
"I am the same person as last season but, as a footballer, I have matured a lot. I know the City style better and have adapted to all aspects of club life.
"My English is more fluent and this always helps in communicating with my team-mates. In my early days here, I suffered a lot of anxiety over this."