Sanaya Roman and Dwayne Packer have a fantastic article on manifesting in their Newsletter/Catalog. I love it because it gets right to the point and covers everything.
Here it is in its entirety used with permission from the author at www.orindaben.com; please visit https://www.orindaben.com/catalog/section/creatingmoney_abundance_manifesting/
You Are the Source of Your Abundance
Through working with your feelings, thoughts, and intentions, you can become a master at creating whatever you want. You are the source of your abundance, not your job, your investments, your spouse, or your parents. By linking with the unlimited abundance of your Divine Self, (sometimes called the Presence, the All-That-Is, or the Universe), by expressing and radiating your higher qualities of inner peace, joy, love, well-being, and aliveness, you become the source of your abundance.
Having money and things is not as important as mastering the process of creating them. Once you learn the process, your ability to be prosperous and to have the supplies you need will not be determined by the economy, other people, or outside conditions. Attracting abundance might mean changing your thinking, opening your heart, expanding your beliefs, letting go of limitations, and believing you deserve to have what you need that serves your higher good. The process of getting each new thing--be it a car, a house, or a larger income--will bring growth. Attracting abundance requires expanding your consciousness, trusting yourself, and being willing to listen to and follow your inner guidance.