nope, its genetic. There really isn't a way to grow more facial hair. Some guys just aren't hairy. I can grow a full beard quite easily and I've had guys near 40 years old tell me they are envious of my facial hair.
Frankly dude, look at it as a blessing. Sometimes I hate having facial hair, especially because mine grows so fast and is so course. I practically have to shave twice a day, an many times it can really hurt because my hair is so coarse. If I only had to shave once a week or something like some guys I would be OK with it, but a week of no shaving, I'd have half a beard.
Wait a couple years. I couldn't grow squat when I was 18. Now I'm 21, sitting here typing this with a full beard and mustache because I can't find the freaking heads for my clippers. I wouldn't give it up until your 20's. Your testosterone goes nuts in your 20's.
i heard vitimin D helps, and relax, your young. I couldn't start growing hair till like 4-5 years agoa nd I'm almost 28. Don't be on of those retards with a 12 hair Mexican mustache. But then again, there are guys who can't grow much at all. A lot depends of race and genetics.
its genetic man. nothing you can do about it except shaving it like everyday lol I started shaving at 14 and you know what I'm 22 and I'm already tired of shaving my face lol all the cuts and rashes. good luck tho