The most powerful affirmation I have ever found is one that starts with “I am a person who……..” – who takes care of herself, who is abundant, who loves success, who relishes exercise, – you fill in the blank. Using this kind of an affirmation reminds you that you must become the person on the inside who does or has the thing you want to express on the outside.
If you say you want to be successful but you realize that you are actually someone who shrinks from or is overwhelmed by success then you are not someone who is successful. Right there is the work in consciousness that will change everything. Affirmations are not just bold faced lies we tell ourselves. They are reconstructing the way we see ourselves in relationship to the thing we are focused on. Develop the consciousness and the manifestation will follow as surely as spring follows winter.