Head and back neck - Is there a way to change the shape of my big head so I can were a hat like every other guy?

The back of my head seems flat in a way it's like my head goes then a waterfall comes down and the sides of my head make my head shape like a square which I like but my head everyone says it's big and it hurts my feelings a lot and the back of my neck when I look up it forms two big rolls and I do t like that is there anyway to change these things ? Thank you

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