Self Assessment is the process of looking at oneself to assess aspects of one’s identity: some online resources can help this process of self evaluation, self enhancement, and introspection. Remember, these are just for your personal use and no test can diagnose you!
What kind of student are you? What is your learning style? What study habits can you improve? How strong is your character? What are you good at? Where do you have room for improvement? http://www.educationplanner.org/students/self-assessments/index.shtml
What is your Myers Briggs Type? Take the MBTI free to explore how you interact socially. http://similarminds.com/jung.html
Some psychologists consider there to be five major domains of personality. What are your fundamental domains? http://www.outofservice.com/bigfive/
How do you relate to others in a romantic context? What might this say about your attachment style? http://www.web-research-design.net/cgi-bin/crq/crq.pl http://www.queendom.com/tests/access_page/index.htm?idRegTest=2856