For a long time, personalities have been classified by different types of tests, like the Myers-Briggs Type Indicator 16 Personalities test. Learning more about your personality can help you learn some new terms and concepts, but you shouldn't take them seriously. They can help on a journey towards self discovery or to match with your friends, but always take the results with a grain of salt because the tests never reveal full truths about personality and it is easy to lie in tests because even though we try, it is difficult to perform self-evaluation without lying to some extent.