The most powerfilled state is when you start living a through me life. And you can’t do that if you just keep make it about you, feeling lack. Start living for your purpose, to help others, and to give. Yes, you can still want the Audi R8 and collection of motorcycles like I do. But those are just things and they won’t truly make you happy. “Things” will be the by product of living a purpose filled life.
In his 1910 The Science of Getting Rich Wallace D. Wattles espoused similar principles — that simply believing in the object of your desire and focusing on it will lead to that object or goal being realized on the material plane (Wattles claims in the Preface and later chapters of this book that his premise stems from the monistic Hindu view that God provides everything and can deliver what we focus on). The book also claims negative thinking will manifest negative results.[56]
You claim that "positive thoughts always resulting in positive things" is not the basis of the LOA. In part you are correct. The foundational basis in science, as I alluded to in the article was that thought stuff particles travel through ether (not air) and interact with formless stuff to create whatever it is that you are thinking about. This was how "the law" started.

How To Manifest What I Desire