The Proper Care and Feeding of the Sarah

Speaking of personality tests (tangentially related to the Ok Cupid thing), have you ever taken a Myers-Briggs inventory?
There's a free mini-version of it here.
Go! Take it! Tell me what you are!
Seriously, please tell me. I'm curious.

This is going to sound like an overstatement but I mean it as sincerely as possible, without exaggeration or agenda:  I think I gained more insight to myself from reading the results of this test than from virtually any other 15 minutes I've spent on anything in the last 5 years.
(Yes, even more than the "Which Muppet Are You" quiz. Albeit narrowly.)

If you ever need a spot-on instruction manual for what makes me tick, this is a better description than what I could have ever written for myself:

by Marina Margaret Heiss and Joe Butt

"INFJs are distinguished by both their complexity of character and the unusual range and depth of their talents. Strongly humanitarian in outlook, INFJs tend to be idealists, and because of their preference for closure and completion, they are generally "doers" as well as dreamers. This rare combination of vision and practicality often results in INFJs taking a disproportionate amount of responsibility in the various causes to which so many of them seem to be drawn.

"INFJs are deeply concerned about their relations with individuals as well as the state of humanity at large. They are, in fact, sometimes mistaken for extroverts because they appear so outgoing and are so genuinely interested in people. On the contrary, INFJs are true introverts, who can only be emotionally intimate and fulfilled with a chosen few from among their long-term friends, family, or obvious "soul mates." While instinctively courting the personal and organizational demands continually made upon them by others, at intervals INFJs will suddenly withdraw into themselves, sometimes shutting out even their intimates. This apparent paradox is a necessary escape valve for them, providing both time to rebuild their depleted resources and a filter to prevent the emotional overload to which they are so susceptible as inherent "givers." As a pattern of behavior, it is perhaps the most confusing aspect of the enigmatic INFJ character to outsiders, and hence the most often misunderstood -- particularly by those who have little experience with this rare type.

"Due in part to the unique perspective produced by this alternation between detachment and involvement in the lives of the people around them, INFJs may well have the clearest insights of all the types into the motivations of others, for good and for evil. The most important contributing factor to this uncanny gift, however, are the empathic abilities which seem to be especially heightened in the INFJ type (possibly because it is coupled with introversion).
This empathy can serve as a classic example of the two-edged nature of certain INFJ talents, as it can be strong enough to cause discomfort or pain in negative or stressful situations. More explicit inner conflicts are also not uncommon in INFJs; it is possible to speculate that the causes for some of these may lie in the specific combinations of preferences which define this complex type. For instance, there can sometimes be a "tug-of-war" between vision and idealism (NF) and practicality (J) that urges compromise for the sake of achieving the highest priority goals. And although they have enhanced self-awareness, their introversion may make it difficult for INFJs to articulate their deepest and most convoluted feelings.

"Usually self-expression comes more easily to INFJs on paper, as they tend to have strong writing skills. Since in addition they often possess a strong personal charisma, INFJs are generally well-suited to the "inspirational" professions such as teaching (especially in higher education) and religious leadership. Psychology and counseling are other obvious choices, but overall, INFJs can be exceptionally difficult to pigeonhole by their career paths. Perhaps the best example of this occurs in the technical fields. Many INFJs perceive themselves at a disadvantage when dealing with the mystique and formality of "hard logic", and in academic terms this may cause a tendency to gravitate towards the liberal arts rather than the sciences. However, the significant minority of INFJs who do pursue studies and careers in the latter areas tend to be successful, as their intuition helps provide the ability to understand abstract theory and implement it creatively.

"In their own way, INFJs are just as much "systems builders" as are INTJs; the difference lies in that most INFJ "systems" are founded on human beings and human values, rather than information and technology. Their systems may for these reasons be conceptually blurrier than analogous NT systems, harder to measure in strict numerical terms, and easier to take for granted -- yet it is these same underlying reasons which make the resulting contributions to society so vital and profound.

"Beneath the quiet exterior, INFJs hold deep convictions about the weightier matters of life. Those who are activists - INFJs gravitate toward such a role - are there for the cause, not for personal glory or political power.

"INFJs are champions of the oppressed and downtrodden. They often are found in the wake of an emergency, rescuing those who are in acute distress. INFJs may fantasize about getting revenge on those who victimize the defenseless. The concept of 'poetic justice' is appealing to the INFJ.

"Accurately suspicious about others' motives, INFJs are not easily led. These are the people that you can rarely fool any of the time. Though affable and sympathetic to most, INFJs are selective about their friends. Such a friendship is a symbiotic bond that transcends mere words.
INFJs have a knack for fluency in language and facility in communication. In addition, nonverbal sensitivity enables the INFJ to know and be known by others intimately."