The Law of Attraction is responding to your thought, not to your current reality. When you change the thought, your reality must follow suit. If things are going well for you, then focusing upon what is happening now will cause the well-being to continue, but if there are things happening now that are not pleasing, you must find a way of taking your attention away from those unwanted things.
You have the ability to quickly change your patterns of thought, and eventually… your life experience.
Take 15 minutes daily, thinking of pleasant scenarios regarding your body, with the sole intent of enjoying your body and appreciating its strength and stamina and flexibility and beauty. When you visualize for the joy of visualizing rather than with the intention of correcting some deficiency, your thoughts are more pure and, therefore, more powerful. When you visualize to overcome something that is wrong, your thoughts are diluted with the “lackful” side of the equation. In time, your physical condition will acquiesce to your dominant thoughts.