I'm personally not too crazy about elective surgery. As a medical student we're taught "first do no harm," and cosmetic surgery is basically cutting apart healthy tissue and introducing a risk of complications where there is no organic disease to be treated.
But as a young woman subject to the same pressures of conventional beauty as you, I'm sympathetic to people who feel if they just fix this one little thing about themselves then their lives will be much better.
So I guess, just do a little introspection. Like, if you fix this one thing, is there a 'next thing' you'll be looking to fix after? But please, choose an ethical surgeon. A good one should be screening his patients for things like body dysmorphic disorder and not just take your money, no questions asked.