Nothing is as real as a dream. The world can change around you, but your dream will not. Responsibilities need not erase it. Duties need not obscure it. Because the dream is within you, no one can take it away.
That, if then I had waked after a long sleep, will make me sleep again; and then, in dreaming, the clouds me thought would open and show riches ready to drop upon me; that, when I waked I cried to dream again.
You control your future, your destiny. What you think about comes about. By recording your dreams and goals on paper, you set in motion the process of becoming the person you most want to be. Put your future in good hands -- your own.
Focus more on your desire than on your doubt, and the dream will take care of itself. You may be surprised at how easily this happens. Your doubts are not as powerful as your desires, unless you make them so.