Be sure it is what you are dreaming of, that it is what you really want. Do you breathe it? do you breathe for it? Does it keep you awake, is it there when you close your eyes? Can you feel it inside? can you feel it so close you can almost touch it, like it is there reaching out to you? Then go for it.
Be sure your heart is in it, sometimes maybe even most times it takes more than talent, more than know-how, more than a bright idea or a dream, often times it take love over everything else to make it, or go another step.
Be sure you believe with everything, all that you are; believe in the dream and in yourself because you are going to need it.
Then Go For It