Below are the results from my Myers-Briggs form Q personality inventory. I was determined to be an ISTJ, the letters representing Introvert, Sensing, Thinking and Judging respectively. ISTJs are serious, logical and realistic. Below is a further breakdown of the types and how well they fit my personality.
February 2019 Update
A lot of this I still agree with. Obviously intuition/sensing and judging/perceptive are more or less toss ups which comes through at what point. Looking further at the J/P breakdown, I think I've transitioned to perceptive over time. Generally, these results seem to suggest I am rigid and want structure, but I think I have become much more flexible as I have aged.