A is for ...

Apparently I am an underachiever.

According to MSN...

Firstborn:
Personality: Firstborns are ambitious, assertive, dominant and disciplined compared with their younger siblings. They're determined to succeed yet fearful of losing position and rank, and are defensive about errors and mistakes, Dattner says.

Compensation: A recent survey by CareerBuilder.com found that workers who were the firstborn child in their families were more likely to earn $100,000 or more annually compared with their siblings.

Professions: The oldest tend to pursue vocations that require higher education, like medicine, engineering or law. Firstborns from the CareerBuilder.com survey reported working in jobs in government, engineering, pharmacy and science. Ohio State University researchers found firstborn children were more likely to pursue "intellectual" jobs.

Job level: Workers who are firstborn are more likely to report holding a vice president or senior management position, according to the survey.

Famous firstborns: Oprah Winfrey, Hillary Clinton, Winston Churchill, Sylvester Stallone and Bill Clinton.