I agree with kavan. I don't know if it's possible, but you could maybe benefit from boneshaving, which they do in Asia. Creating a jawangle by adding something won't solve your issue and will probably make it worse/freakish. You have too much bone structure in some parts of your face, especially on the level of cheekbones. BDD is Just how you look at it. If you take the standpoint that it's a mental thing and you have to accept your face, then everything is bdd. If you cannot manage to accept yourself then the only thing you can do is trying to change your face.