Start by laying out the foundations of your idea or what it is you wish to change in your mind and slowly build up from the bottom, clearly visualizing every little nook and cranny of the idea, the foundation work behind your idea is the basis for your success. When lying down the foundations think about the following
What is it exactly that I want to achieve or change?
What difference will this make to make?
Can I achieve what I want on my own?
What do I have to change in my life to accomplish this?
What do I have to learn to accomplish this?
Once you have laid the foundations for whatever it is you wish to change in your life then you can go ahead and build up on your plan, visualize the project every step of the way as clearly as possible and seeing the project from start to finish build in your mind as accurately as possible. When you have the visualization completed in your mind then you can take steps to achieve what it is you desire, if you wish you can then note down the steps you took in your mind in writing to achieve the outcome, and follow these through from start to finish.