The Dutch youngster will move to City at the end of this season.
He told Voetbal International: "There are experts who think I'm going to make it and there are people who think I cannot handle it. I can show it now. What else should I have done? Let this chance go?
"I know Josep Guardiola wants to work with young talents in the coming years.
"I'm not just a number, they really have a plan with me. Guardiola too. When I was in hospital for my medical examination, my father spoke to him. He knew exactly who I was.
"In England I am going to give everything, then I see how far I have to go. For the coming years, I have only one goal: to become a player for Manchester City."