You were born a creative being. You may have allowed others to squash your creativity when you were young, you may have denied it yourself, but you are creative!
Whether you doodle, write, sing, make things with tools, or arrange furniture in pleasing ways is not important. What is critical is that you begin to allow yourself the freedom to explore your own personal modes of creativity.
If you have not heard of it before, the book, "The Artist's Way" by Julia Cameron is a fantastic tool for freeing your creative being. Thousands of people have enriched the lives of themselves and others using the tools in this book. There are many study groups that use the book as a guide. Look one up!