People mature at different stages and I feel I'm learning a lot.

Golf is played between the ears and if you are not 100 percent focused on what you are trying to do, then people will go past you no matter who you are.

Even when I finished third at the U.S. Open a few weeks back, I didn't putt very well, nor in the last round of last year's Masters when Mickelson won, nor last year's Open at Turnberry, where I came second.

You're the only one in control over your golf ball. It's not like tennis: you're hitting a shot and somebody's hitting it back at you.