how can I make my brest smaller
You can't without surgery- you just have to learn to deal with what you have.
Ways that you can make them appear smaller:
-Minimizer Bras - they sell them in almost any department store and they can make you look smaller
-Don't wear tops that tie under the breast - they make them look bigger
-Baggy Clothes make you appear larger too, it doesn't hide them
balconette bras work. The straps from your arms come further down so it increases the lenght from the armpit to the middle of your boobs and makes them look flatter