Okay well i only wear a B cup, but sometimes i feel like thats big even for me. I am only 5'2'' and petite, so i wouldnt want anything bigger. I even feel compelled to wear tank tops and backless shirts because they dont look right on me. I think being smaller is much better. It all depends on your body size and frame, maybe an A cup is ideal for you!
I really think you should think through it, and i would advise you to not go through it, especially if its because you want to please guys! Be thankful for what God has given you! You can wear tank tops, backless tops, run without pain, no backaches....etc. Do you really want to give up all that?
Lana, you should look in the mirror and look at how great you are and all of your attributes! Like other have said before, for people to like you, you have to like yourself first!