It's easier to believe what you can see.
Name a goal, in present tense. Describe yourself doing your goal, the ideal scene. Read your description out loud and post it at your work area. Reread daily.
Collect actual pictures of yourself and combine them with magazine images to collage the scene as you have described. Post at your work station.
I've read this next technique more than once. Create a book jacket of your work in progress and cover a book by your favorite artist. Keep the book near your work station as a reminder of things to come. This is a great motivational tool.
For those of you already published, keep your published works in sight for motivation.