It won't make you grow taller if you've already stopped growing, and certainly not to the extent you'd desire. Hey, there are LOTS of guys your height out there. I'm 5ft, haha, so could be worse! But yeah, best thing to do is just be confident with yourself; your height doesn't make you any less of a guy, you know?
As for clitoral growth, I get you, I'd be worried about that, too. I'm very apathetic towards my lower area, I don't really notice it outside of the obvious, so I'd worry that any changes to that area would make me notice it and then I'd feel unhappy/uncomfortable with what I see. But, unfortunately, it's not something you can control, nor predict. Yeah, it might not grow much, but it might. You can't tell until it happens.