Your personality can play an important role in your career choice. People that tend to be happier in their careers are those that have a career that doesn't conflict with their interests.
Resources to Learn about Your Personality
The Princeton Review. This 24 question quiz will match you with a color that describes the over archiving qualities of your personality in relation to career fields. (As an example, I am a blue person and I am drawn to education fields, writing, and careers that let me think analytically.)
The Myers-Briggs. This test one of the most comprehensive personality tests that can help you identify personality traits that you may want to keep in mind when choosing a career.
Interest Assessment quizzes are also helpful to take to match activities that your like with career goals. Again, people who do things that they enjoy tend to be happier and more successful in their work.
Career One Stop Interest Assessment. This 30 quiz uses data from O*Net Interest Profiler and occupational outlook, wage, and education facts from the U.S. Department of Labor. It will provide you with 30 results listed from best to good fix.
O*Net Interest Profiler provides 4 different tests to analyze your interests and match you with career suggestions. These tests are longer and more comprehensive.