Ok, I really didn't want to have to reveal this about myself, but I kind of have to now.
I have BDD.
I totally understand what you're going through. There's plenty about myself that I obsess over, and when it gets bad I sometimes consider turning to plastic surgery.
But the fact is, that wouldn't help. If I had them fix say, what I consider to be my uneven shoulder length (that is actually there, I broke my collar bone as a kid. But it's very slight, and most people's shoulders are uneven anyway.) you know what would happen? I wouldn't be happy with it. I'd continue to obsess over it, and even if I didn't, I'd just transfer the obsession onto something else. Because the need to correct myself would still be there, attached to my low sense of self.
Therapy helps, and you know what? You can use the obsession to fuel something positive. I exercise everyday now; I lift weights, I do yoga, I use my exercise bike, and now I don't really care about my shoulders. Rather than take away the bad, I've used the bad to add good things.
Do you exercise at all? I would recommend you do.