How can my chin be shorter? Can braces help make my chin shorter?

I'm a teen right now & I have been bullied for having a long chin(it's kinda jutting out)and I'm having a crossbite. I really want my chin to be shorter so people would stop bullying me & my lips are kinda thin so when I'm smiling my lips can't be seen that much which makes it longer.In just a few months I'm gonna have braces on. Can braces help make my chin shorter? But if it doesn't, will it stop jutting out? And is it possible that my chin's getting longer? Thank you so much in advanced!

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