There is no limiting factor to the type of success that you can use them for. Success is what YOU believe it to be. You can use your affirmations to help you be successful in your career, your finances, your family life, or your love life.
Used correctly, affirmations for success can help you achieve the success goals that you have created and want to strive for. Here in this short video from The Secret is some clear guidance on how you can use affirmations to help you towards your own success.
You can learn more about the secrets behind The Secret at http://tiny.cc/thesecrets