I wanted to make a point of basing myself at home, being close to my family. I'll never be able to repay Mum and Dad for what they did, but at least they know they'll never have to work another day. I'll do whatever it takes to look after them.
I realise that every time my face is on TV or I'm playing in a tournament, that I am a role model for a lot of people and a lot of kids do look up to me. I try to do my best in that regard and put myself across as honestly and as modestly as possible, as well.
I'm afraid there are no replays or second chances in amateur or professional golf, and that's the way it should be.
Sport was an obvious favourite of mine, and not only golf. I was, and still am, a big rugby fan.
I started to really believe in myself, and my abilities, when I won the World Under-10 championship in Doral, Florida. I was nine and saw for the first time that I was amongst the best players in the world for my age. This was a massive confidence-builder for me.
I was very excited when I first started to travel so much. In fact, I was amazed that people were paying me to travel to play the game I loved.
If somebody asks me whether I'd rather sink the winning putt in the Ryder Cup or win a major, it's the major every day. World championship or Ryder Cup? Win a world championship. At the end of the day you're going to be remembered for what you achieve in an individual sport.
Home will always be Northern Ireland but my schedule means for the next few years I won't be there as much. I can't do the same things that I did a year ago. That is I'm something conscious of, but I'm not sad about it. It's fine.
I really enjoy playing 'Tiger Woods' on the Wii, and you can set the levels to easy, medium, or hard, so I think it's definitely a good way for kids to learn the motion of a golf swing if they want to get into the sport. It makes it more fun for them as well.
If I'm playing in the morning, I'll get some carbs early: porridge with chopped banana. If I'm playing in the afternoon, I'll start with less carbs and have some eggs and fruit for breakfast, then a light lunch about 90 minutes before I play, so I don't feel sluggish or full.
You get thrown off balance out there. And I never recovered. Well, I haven't recovered yet.
I always got very excited about the Masters as a kid. I could hardly wait until the Wednesday when you'd get the BBC's preview. And I'd then be glued to the screen until Sunday night.
As an international sportsman, I am very lucky to be supported by people all over the world, many of who treat me as one of their own, no matter what their nationality, or indeed mine. This is the way sport should be.
I used to not really like going to the gym when I was playing tournaments because I'd be sore and stiff. But the more you keep doing it, the less soreness you have. And you actually start to enjoy it.
My dad's a scratch golfer and I've got the knack of seeing something and then replicating it. I saw my dad swing a club and I worked out how to do the same thing. My backswing and follow-through have been basically the same since I was two.
It may come as a surprise but I also really started to get into history while I was at school. I found the projects about World War Two fascinating - perhaps when I get the time again, I could pick up where I left off.
I'm sure there was an educational angle to the trips (I think one was to the Ulster Museum) but it was the fun and banter I had with my friends I remember the most.
In all honesty, I never actually did anything wrong (in my eyes, at least) at school or misbehaved in any big way. If it was anything, it was probably just a lot of clowning around.
Because I lived so close to the school and walked there every day, I used to enjoy the school bus trips.
I was detained a couple of times but that was for not handing in homework because I was playing golf or not present because I was playing golf. There was a theme evolving.
I receive huge support from Irish and British sports fans alike and it is greatly appreciated. Likewise I feel I have a great affinity with the American sports fans. I play most of my golf in the U.S. nowadays and I am incredibly proud to have won the U.S. Open and U.S. PGA Championship in the last two years.
Of course, money matters to everyone even if some don't want to admit it. If I won the Race to Dubai, I look at that prize money and think it could pay off my new house or the range I'm building. I am privileged to play golf for a living - look around St Andrews, that's my office.
It's a great feeling to know that I've played the best golf throughout the season of any of the guys for the second time in three years, it's really nice.
I've had support from all sides, from people who call themselves Irish, from Northern Irish, to the whole of the UK, to people in America, and it would be terrible for me to segregate myself from one of those groups that support me so much.
I am a proud product of Irish golf and the Golfing Union of Ireland and am hugely honoured to have come from very rich Irish sporting roots I am also a proud Ulsterman who grew up in Northern Ireland. That is my background and always will be.