“I wasn't playing well, I wasn't feeling good on the court, I was questioning everything,” he said.
“I was doubting whether I will be able to play everyone on this level, because I didn't know to what extent the operation of my elbow would affect my game.
“It was a huge learning curve for me, just the whole process was very special. I embraced the journey. I am very grateful to go through it. I would never change anything if I could turn back the time, because things are just the way they should be.
“But, yes, 12 months ago it was highly unlikely I would be holding three slams. I just have to be conscious of that and understand that I'm blessed.
The Serb inflicted Nadal’s first straight-sets defeat in a Grand Slam final.
Djokovic became the first man to win seven Australian Open titles and the first man in history to record three streaks of three or more consecutive Grand Slam titles.
He stands to become the second man after Laver in 1969 to hold all four majors at once on two occasions.
Grand Slam trophy No.15 pulls him one clear of his idol Pete Sampras, and just five shy of Roger Federer’s all-time record.
Pressed on how he would live with it if he went on to surpass Federer’s mark, Djokovic could see the light side to the question.
“How do I live with that?” he laughed. “Just fine.”
“I do want to definitely focus myself on continuing to improve my game and maintaining the overall well-being that I have mental, physical, emotional, so I would be able to compete at such a high level for the years to come, and have a shot at eventually getting closer to Roger's record.
“It's still far.”
At this rate, maybe not as far as he might be leading on.