Have you seen a doctor about this hair loss? It might be caused by a condition that can be treated. And have you tried a shampoo with minoxidil (Rogaine)? It's the only ingredient that's FDA-approved to treat male pattern baldness.
Have you explored getting a hairpiece? Men would call this a "toupee:"
https://www.amazon.com/Meiverah-Hairpiece-Extension-Hairline-Replacement/dp/B095HG6G35
If you started wearing a hairpiece and your coworkers commented on it, you could be prepared with a few snappy comebacks, such as
"What? No, my hair has ALWAYS looked just like this."
"I wasn't going bald. I just sent my hair out for servicing."
"If I keep watering this little hairpiece, it should look like Dolly Parton's wigs in about a year."
"I'm wearing it as a disguise. You weren't supposed to recognize me."
Something playful and facetious, like these.