The vice captain, who is now 34, is still known for his longevity in games and his ability to stay fit. He has played 33 matches this term.
Milner said: "Fortune is one [thing], I think you need that luck with injuries and things like that.
But I've always tried to do whatever I can to give myself the best opportunities, whether that's looking at diet and gym work; I did that as early as Leeds and Newcastle, the gym stuff, and that's developed as well. I just try to push myself.
"Earlier in my career, maybe five or six years ago, people were saying 'You're going to have to start toning down your work in training and reducing your numbers and output in training to keep that longevity' and I didn't really agree with that.
"I thought, obviously I'm going to drop off at some point in terms of physical output and things like that, but surely if I push myself more, the further distance I've got to fall. If I do drop off then I'll be in amongst the pack as opposed to dropping from the middle pack downwards.
"That's what I've always tried to do. I've always tried to push myself, always tried to keep the young lads in place in terms of running and stuff like that. I'm sure I'll get reeled in at some point but I'm hoping that's not for a few years yet."