The 21-year-old — who will appear in his 48th game of the season when Tottenham face Aston Villa tomorrow — refuses to accept he has already made it and that he no longer has to work hard as a result.
Walker told The Sun: “I’ve strived to be the best I can and worked tirelessly to make it — but I would never take what I have achieved so far for granted.
“The moment you become complacent and get ahead of yourself you face the threat of throwing it all away. And I could never do that. I couldn’t let people down who have made so many sacrifices to get me where I am.
“Naturally I’m proud of what I have achieved so far but I’m still young and still learning. And I don’t think I will stop learning even when I eventually stop playing."