hmm. what i would say is that this would be the ultimate example of loving yourself, just the way God (or whomever depending on your religious beliefs) made you.
what im thinking is that though you may not think that all those comments bothered you, they really did and they really made a lasting impression on how you view yourself. this is really unfair, but you didnt do anything wrong, its just when you hear something enough times, you start to believe it. i cannot believe that your own family would pick on you about it for your whole life. how is that supposed to make you feel good about yourself.
if you want my honest opinion, i wouldnt have the surgery. its very conflicting for you to do something, yet tell your child that they should be happy the way they are. they are going to find something to be unhappy about - teenagers are HIGHLY likely to hate some part of themselves. and you having surgery to fix something ... its letting your daughter know that you didnt like something about yourself, so you had someone fix it. if she doesnt like something about herself, she can fix it too. and she will notice; especially in pictures.
so, what i would say you do is to start stopping all those comments. you can do this in various ways; which ever you feel most comfortable with. you can say "i would prefer that you not make fun of my physical appearance, i like myself the way i am" OR "you know my whole life those comments sting, and they sting even more now knowing my daughter notices them" whatever makes you comfortable. you dont have to get mad or anything, but you should be able to say something so that the negative comments about YOUR nose stop, if only for the sake of your daughter. you sure dont want her thinking its ok to pinpoint peoples physical "flaws" and constantly berate them for it. :):)
anyway, just be happy for who you are and how you look. your nose is a part of you! you came into this world with it. its just YOURS. :) :) and thats always a good thing
besides, who would want to ruin a normal thing with a botched surgery. i mean, they happen all the time right? LOL.
good luck. though i have never met you, im one of those people who could care less about someones physical appearance; i would rather be concerned with who you are as a person, your character, your personality, how you treat others, etc. right? anyone who doesnt love you for WHO you are instead of what your nose looks like....welllll....... you shouldnt give their opinion any attention at all. :)