Did you think of any other things to get The Law of Attraction to work? The main thing, and it's not really a secret, is Action. You cannot just sit at home focusing on all the things you want. It's great to do that and it certainly will help. But if you don't actually DO something towards getting them, the chances of getting them are extremely slim.
In "The Secret", the man that starts getting cheques in the mail must have done something to get those, they didn't just magically appear. And the man who realised that he was living in his dream mansion looked like he had spent years working hard to get there.
Tony Robbins and many other motivational speakers and writers from Napoleon Hill and others even before him, have talked about this and encourage people to do the goal setting, the visualisation, the positive thinking, the gratitude and then take action. And if that doesn't work, try something else. And if that doesn't work, try something else. To not give up but just keep moving and taking action towards those goals.
"The Secret" is not new. But it is a great reminder of how powerful our minds are. Getting clear about what we want, believing in that possibility and taking action towards those goals are some fundamental skills that should be taught to children so that it becomes a habit. I'm going to start talking about all of this with my own children.