If you have ever rewritten a grocery list because the handwriting was "too chaotic," if rules are your love language, and if you have a resting face that says, "I'm not angry, just disappointed," you might be a 1w9.
A characteristic struggle for Eights is Lust—not necessarily in a sexual sense, but a lust for intensity, excess, and expansion. They often feel that they need to push boundaries to feel alive.