I'm not a big personality test guru, but I've worked with (and lived with) people who are. So I always have to remember which one I was last time I took the test. So this is less of a personal ethos, and more of a reference.
I took the StrengthsFinder test in 2010. My boss at the time had the whole company take it and aligned our personal growth goals and team interactions around it. I loved the intentionality of it as a team-building and self-awareness method.
I'm an INTP as of September 2, 2015. Took again on October 22, 2016 – same result.
"The INTP personality type is fairly rare, making up only three percent of the population, which is definitely a good thing for them, as there's nothing they'd be more unhappy about than being "common". INTPs pride themselves on their inventiveness and creativity, their unique perspective and vigorous intellect. Usually known as the philosopher, the architect, or the dreamy professor, INTPs have been responsible for many scientific discoveries throughout history." Source
I took the Enneagram test on March 12th, 2019. I'm a 1/3. Tied for Reformer and Achiever.
Took it again on 8/9/19 and was a 3.
Took it again on 8/27/22 and I'm a 1 again, with 3 close behind.