City lead Schalke 3-2 going into Tuesday's last 16 second leg tie at the Etihad Stadium, and Guardiola's side are favourites to progress to the last eight. But the Catalan said his side are still raw when it comes to Europe's top club competition and claimed they lack the experience of more established sides also left in the draw.
“We are teenagers in this competition," said Guardiola. “That's how I feel. We want to win it and we push ourselves. That's the best way, to feel this kind of pressure. We have to dream and point as high as possible.
“But at the same time we have to accept there are other teams thinking the same, with a lot of quality and a lot of talent. The English teams right now – Manchester United and Tottenham are there - and we cannot deny how strong they are.
“People think that because Real Madrid are not there, this competition will be easy."