Often, we are so caught up in our desire to see a certain result happen, that we completely forget to notice the approach we're using. If your heart and soul are genuinely into whatever you're trying to accomplish and it's not happening, look at your approach, the "how" you're going about it to get the "what" you want.
This is why to me the "ultimate" happiness variable is not in changing the content of our thoughts but rather in increasing the level of our understanding. To tweak an old proverb, it's the difference between changing our feeling in the moment and changing our relationship to our feelings for a lifetime.
There is nothing more humbling and rewarding than taking advice from your kids. Can I make myself feel better by taking credit for my son's intuitive words of wisdom? Maybe not. But I can be smart enough to pay attention. He's making good sense, so perhaps I'm not screwing up 100 percent of the time.