Every single time you feel appreciation in advance of your desires being brought to fulfillment, you're rebuilding your body to prepare for your desire already being a reality.
When you shift your state of being on a conscious level, which means not to be dragged around by the inertia of your conditioning; the automatic thoughts and feeling patterns, which, resembling a carousel, spin perpetually to prolong one another, and also the fear-based behaviors that come as a result of being motivated by such thoughts, feelings, and belief systems. When you learn how to master the art of realizing that you're not in the state of your preference you can begin to embody the state adjacent unto your hearts desires.
"Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." -Mark 11:24
When you embody the state, change begins to occur on all levels of your being. Focusing on the new state simultaneously destroys the old. The more you can embody who you know you truly are then the past will progressively have less and less power over you.
Your brain begins to change as you embody the new state as the neurological pathways which represent your previous experiences in the neural net begin to untangle themselves; this is known as neuroplasticity. The brain also begins to send new chemicals from the hypothalamus which are representative of peace, joy, harmony, coherence, and love as opposed to the automatic patterns of the subconscious which generate chemicals of worry, stress, anxiety, and fear.
Have you ever wondered why your body automatically thrusts you into undesirable states of being? It's because you're addicted, on a cellular level, to the chemicals adjacent to the state. The only way to override this addiction is to begin to believe, feel, think and behave in different ways so you can have new experiences, which in turn help create a new personality which then assists one in creating a new physical reality experience.
You don't attract what you want, you attract what you are. Be the change you wish to see in the world and watch the world around you miraculously change before your eyes.
In a nutshell, be who you desire to be now, the mind and the body will catch up to you in due time. Thank God in advance for the blessings which are on the way, just don't be attached to the outcome of those blessings. Focus on the now, and let God take care of the when and how.