Even though there are a bazillion ways to slice and dice personality, I find the Myers-Briggs packaging of the Jungian functional preferences provides:
descriptive power in the form of comfort and relief that many, many other people experience life the way you do, and
prescriptive (predictive) power in the form of known ways to handle typical problems-of-living to help you change things in ways you want
If you want to change something about your inner and/or outer lives Say Hello.
Find Out Your Myers-Briggs Type
Do a few different tests:
4 questions (Q1, Q2, Q3, Q4) (Scroll down)
The Sixteen Types in Five Minutes (5 mins) Michael Pierce
Develop Your Co-Pilot
IMPORTANT: Fast Personal Growth for Every Type
Basically we are all looking for someone who knows who we are and will break it to us gently.