The 24-year-old has emerged as a key player in Arsene Wenger's side during the past two seasons after spending loan spells at various clubs, including a stint with Charlton Athletic as recently as December 2014.
The Frenchman also attributes his motivation to Al Pacino's famous speech American football film Any Given Sunday.
"In life you always come across people who think that you are not going to do something," he told Arsenal Player.
"It is nice, it is a motivation you keep in your head. You think, 'Okay, that is what you think. Now I'm going to show you what is going to happen'.
"I remember being with a teacher at school and in a meeting she actually said to mum that I would end up on the street - to a 10-year-old! That was over the top, big time.
"The other day, I was talking about it to my missus. I would actually like to find this teacher and show her now that I'm working hard, playing football and hoping things go well.
"You pick up inspiration from everywhere, even from the movies sometimes. I watched 'Any Given Sunday' the other day, with the speech. I pick up things from any sport. I think there is a great champion in any sport, so you can get a lot from anyone."