"Whether you think you can or you can't, you're right" ~Henry Ford
That's the long story short of the Law of Attraction. Your thoughts create your results.
The point of that is that you need to change your mindset! Even an entire house starts with a blueprint, and the blueprint starts with a mental image. That's important to remember. And, as a result, when you think of something positive/negative, your life manifests that.
What you want, imagine it, and believe that it'll happen. Therefore, it will.
"Nothing is impossible. The word itself says 'I'm possible" ~Audrey Hepburn