Changed broke screen then touch screen stopped working?

I have a iPhone 4 from Verizon and I cracked my screen a few months ago an just got the stuff to change it. So I got stuck on a striped screw so I put everything back and gave up before I made it worse. Well, my phone turned on and everything but then the touch screen like stopped. It wouldn't let me unlock it or ANYTHING. Only the buttons would work. And, I don't know what to do because It was working fine at first before I opened the phone up now it does this.

Best to take it to repair or warranty

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