just shoot alot, learn the basic and the rules, then forget all the rules and shoot ... see what you get, if you like them, build on it, if not, try again .... rules are necessary, but rules also dampen creativity ... must know how to balance both
Learn to see things differently. Open your eyes and mind to new suggestions and ideas. Expose yourself to works from people who have already established themselves in the field.
Its hard to be creative, and some people are born more creative than others, but I always believe that there is always an avenue to improve our creativity instead of attributing it all to natural talent.