You can imagine room full of furniture, and now you want a new look for this room. You purchase a new couch, end tables, and lights. However, you cannot use the furniture and change the look and feel of the room, until you make space for the new furniture. You must let go of the old furniture.
Another way of pointing to this is you must make space for the new look. So, it is with health, wellness, and abundance in your life experience.