Now that you have all your supplies put it together!
Clip out your favorite pictures. What are you using? A picture of a money tree? favorite house? kids? college? There is no limit on what you can add...well until you use up all the space. Then you get another board and continue!
Good luck and remember, there is no right way to make a dream board. As long as it shows you exactly what you are looking for and keeps you visualizing it until you get it.