Aguero returned from a hamstring injury to play for almost an hour of Sunday's Capital One Cup final victory over Sunderland in his first appearance since the end of January.
The Argentine claims he suffered no ill-effects from his first run-out in over a month and is looking forward to being involved in City's chase for more trophies following their success at Wembley.
"I felt fine. It was my first game since the injury," said Aguero.
"I am happy to be back. Obviously there's always that worry when you come back that there's no reaction but it all went fine.
"In England you play a lot and we have to get used to it. Yes, there are a lot of games but we have to adapt to English football and get on with it."
Aguero also hailed City boss Manuel Pellegrini as the driving force behind their chase for a clean sweep of domestic honours as they try to add the Premier League and FA Cup to the Capital One Cup triumph.
"Every manager is different, and with Manuel what he does is he talks a lot to all of us and treats every player the same," added Aguero.
"This is important. He says things to motivate us and that's good.
"I'm pleased as it's the first trophy for Manuel. We adapted quite quickly to his way of playing and I'm pleased as he's given us a lot of guidance."
Aguero believes an unprecedented domestic treble is within City's reach, despite trailing Premier League leaders Chelsea by six points.
However, City do have two games in hand over Jose Mourinho's side and an FA Cup quarter-final with Wigan to look forward to this weekend.
"I'd love to win that [the treble] and I think we can aim for that," concluded Aguero.