I do look younger than my age and work in a predominantly male industry.
Let's use yesterday's as an example meeting. We were meeting with a notoriously difficult client. I ended up finding an ideal location for a rogue fire hydrant and selling them on it. I ended up being able to explain a more expensive pipe choice and having them happy about it because it means less outlay in terms of fill and asphalt. I soothed the ruffled feathers about "bad grades" due to what their neighbors did. And I had them smiling and cracking jokes with the extended deadline. This was with my boss in the room trying to do the same thing. I was SICK and doing this.