I am a 22 year old 5'5" girl who weighs 120 pounds. I consider myself to be a fairly thin person as I typically wear a size 2. I have never in my life felt comfortable with my breast size and constantly wish they were smaller, resorting to everything from dieting to excessive exercise to try to make them shrink, and nothing works. I'm scared they'll just get bigger as I age. Having small boobs would make me more confident and would help me to love my body. Is this a realistic size change?