If you are constantly worried about bad things happening, or negative outcomes, then you are using the law of attraction against yourself. To worry is really to apply most of the above steps, towards a negative outcome. You are visualizing the negative outcome and asking the universe for it with pictures of the negative outcome; you are feeling the feelings of the negative outcome. Stop worrying and follow step seven above.
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.