How to fix my black iphone screen?

I dropped my phone in it's case and it still cracked the corner of the iphone above the camera and now the screen will not come on and i don't think the top button works either, i don't know how to fix it or what to do. And i don't think replacing the back screen will fix it. Someone help please! Any ideas are appreciated!

Go to you Cell phone provider ie Verizon or Sprint and maybe they can recommend you to an apple store that fixes iPhones. Or you can look for local apple stores, they may be able to fix you phone for you (it might be as much as $200 though:-()