Take this free test at: http://similarminds.com/jung.html
Be truly honest and answer the questions with thoughtful contemplation and you will be able to know what kind of personality you may have.
This test questions your psychological preferences in how you make decisions in the world.
To improve upon yourself, one must truly KNOW thyself first.
This test is called the Myers-Briggs type indicator test developed by two human behavior specialist using the works of Carl Gustav Jung.