The former Manchester United ace is now 27 and reaching his peak years.
"I just hope I will keep seizing the moment year after year", he told TVI. "I have not yet reached the peak of my career.
"This is all just relative. Next year, I could be at a higher mental level and not score as many goals.
"Who I am today reflects all that I have been through. I have earned all that I have, because I have worked so much.
"Nothing has happened by chance. It was all effort, dedication and a bit of luck."