This is a very common situation. Many women have one breast larger than the other. Generally it is not something that people bother doing anything about. It is pretty natural. It does concern young girls because they think they might be abnormal or something, but you get used to it and later on you will stop even noticing it. I think it is a bit extreme to have an operation on it unless there was a really huge difference that was obvious to everyone who looked at you.

hello and welcome. You are perfectly normal and you don,t need to change a thing.
Take guys for instance one large testicle and one small or both huge. Penis is same either too small, some big and some well endowed.
The point im trying to make is we are all so caught up especialy young women and men on that ideal look that you see in magazines.
You are im sure a beautful young women and stay that way and be confident with yourself.
My breasts are 38d and i would love them a size smaller but i prefer to keep what i was given.
I guarentee the only person who shall notice is you.