Help!!!

I caught feelings for my coworker who I’ve been close friends with for 6 months. He’s sweet, confident, goofy, and he treats me so well. We’re always flirty and he finds opportunities to hang out all the time. I feel like I’m catching feelings for him really quickly and I’m not even sure if he likes me. To make things worse, he’s 19 and I’m 16. What do I do?