Haaland joined City this summer from Borussia Dortmund with big expectations.
He told BBC Sport, "Of course there is pressure - I'm playing for the champions - but in my head it's about trying to go out on the pitch, smiling as much as I can and trying to enjoy the game, because life goes fast and suddenly your career is over.
"We need to be better in the Champions League and the cups and to maintain [our form] all the time in the Premier League. It's not easy, there are so many good teams. It's about building on what City have had here for many years. I want to bring my own kind of things and hopefully be better.
"I don't want to say too much about this. It's my favourite competition - I love the anthem and everything. It's a really nice competition, a difficult competition. My dream is to win it."
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