The winger has been a revelation for Atalanta in Serie A and the Champions League this season.
Lookman was pivotal in the Italian side’s Europa League win last season as well.
Lookman told Sporty TV: "Obviously the player that I was then is definitely the completely different player than I am today.
“And as a person, I have grown up and I've matured a lot, and I have been able to achieve a lot in my time here.
"That's also because I've been able to create a process in terms of my work and how I think and all different aspects of my life and areas that I could improve on and do which I have done.
“It's all becoming who I am today so I'm pleased with that and wherever the future takes you, we shall see."