Remember something: not everyone likes the same thing. Some guys like blondes, some like brunettes, some like redheads, some like girls with green hair. Some guys are really turned on by fat girls; others like girls who are slender. This goes for all parts of the body, including the face. The kind of facial characteristics you think are "attractive" in a girl are only attractive to some guys. Maybe you haven't met someone who is attracted to you yet. But I can guarantee that there are guys who would be heavily turned on by you. I can guarantee it because I know that there is nothing on earth that someone isn't turned on by.

I used to worry about this as well, so you're not alone; but I'm sure you're quite pretty so don't worry about it!