Affirmations do not work if they are merely statement of what you want to be true.
Affirmations work only when they are statement of something you already know to be true.
The best so-called affirmation is a statement of gratitude and appreciation. “Thank you, God, for bringing me success in my life.”
Now, that idea, thought, spoken, and acted upon, produces wonderful results – when it comes from true knowing, not from an attempt to produce results, but from awareness that result have already been produces.
If, now, there is something you choose to experience in your life, DO NOT “wants” it – choose it.