Check out this website for learning more about what personality type you are, and what your strengths/weaknesses are.
The Myers-Briggs Type Indicator (MBTI) was originally created to help choose the right career, but it also offers wonderful insights in who you are, and how you function. There are 16 personality types.
The test is free (takes 10 minutes), and the report is also free (takes 10 minutes to read).
For an overview of what all the types are, please check out this YouTube video.