As the others have said your facial hair is quite good for a guy your age and you have no reason at all to be nervous about it. All our beards develop at different rates, and to have full or near full coverage at 19 is the exception rather than the rule. I am sure you will see a lot of improvement over the coming months/years, but you just have to be patient and wait for it to happen, That's how it is for all of us. And since you are still 19 I am moving this thread to the teen beards forum.

Kep growing. Get bearded!

wulff