Small boob help

I literally have the most pathetic boobs ever and I don’t know what to do with them. They always ruin my outfits because one is bigger than the other so I can’t wear low cut because it’s noticeable and whenever I wear dresses braless they just sag but my friends who have smaller boobs than me always manage to make theirs look huge and amazing I have no idea how they do it. They don’t contour or wear bras they wear dresses and it automatically gives them a boob job but leaves me looking like a 80 week old deflated balloon :// it’s depressing even 13 year olds some how manage to get their cleavage looking huge yet I’m almost 20 and have no idea how lmao help