Law of attraction practiced prior to the 1800s. If you are referring to arcane practices in Babylon and Biblical times that we have little knowledge of, I am aware and have looked at these. If there are some specific and relevant references I would be interested in hearing them. As you believe in a LOA, most of what you hear will be filtered through this lens. As I now do not, most of what I hear will be seen through that lens.
As you move forward defining characteristics and attributes, define physical attributes and define the associated feelings. If you are shooting for happy, define happy. What is that for you? Take time to define and describe every detail. Remember the old saying, ‘Be careful what you ask for you just might get it?’ Keep in mind that you leave nothing to chance. An incomplete description can leave multiple options for the materialization of your dream; some may be just what you asked for but not at all what you wanted. Be specific. The more time you spend here, the more comprehensive your definition of your dream, the more accurately your dream will materialize in a way that closely resembles what you desire.
Have a clear intention. Conscious manifestation is all about intention. Intend that your vision happens at your will. Manifestation doesn’t require an effort but being focused on what you want. Intention gives a clear direction to your desire. By being focused, you say to the energy where it should go. Imagine that you’d like to start a yoga studio but your energy and focus would go on being on Facebook and chatting with your friends. While there is nothing inherently bad about that, the thing is that you lack energy that you need to support your dream. Every dream needs a certain amount of energy to manifest in a physical reality. This is where focus and intention play a major role.