“I think I have done a very good job of preparing but I am still in the process,” he said. “I played well in Perth [in the Hopman Cup], especially against [Lleyton] Hewitt. It was very good in some elements of the game that I was working on, like serve and return, which I really want to improve on and put more variety in my game.
“It’s been three years since I won my only grand slam. After that a lot of people expected me to win one more, a couple more, because I was really on the top of my game. But for some reason, mentally I destabilised.
“I was always trying things, changing the racket. Everyone goes through a mini-crisis. You have to overcome it, you have to stand up and say, ‘OK, now I really want to get back, now I have to dedicate myself to the sport and get a couple of good years and reach the lifetime goal, to be No 1’.
“If you ask me if I am maybe ready for the Australian Open I would say in this moment I just need a little more, so it’s seven to ten days of good build-up, physical strength and mental preparation.”
“As you get older you get wiser, this is natural,” he said. “Definitely I am using a lot of experiences and situations in my life as a good school. Just learning every day how I should behave on and off the court and how I should accept my commitments in my profession that I have around me."
I think he's already working towards being the guy he was in 2007/08.