Myers-Briggs Personality and other personality type tests — Who am I?

In answering January 2020 – Day 2 Questions—

When I came to “Who am I?”

I put down… “I am an ambivert.” As per a Myers-Briggs test, I tested as 50/50 extrovert/introvert with slight leanings towards introvert.

Would saying, “I am introverted or an ambivert”, be a thought or a fact?