In order for you to have an abundance of money, your consciousness must be one of "having", not one of "not having" or lack. The Universe looks at your consciousness, and brings you more of what it finds there. If you keep thinking about what you don't have, can't do, fail to achieve, the Universe brings you experiences of more lack and limitation. But your consciousness of abundance, in whatever area, will start bringing you more abundance in every area of life - including money!