My iPhone 4S Screen Isn't Working?

About a month ago, I had a major crack into my black iPhone 4S (my provider is AT&T). I bought a "Do It Yourself" kit through iCracked and every thing worked perfect. But the other night, my phone fell off my desk and had a small crack, barley noticeable. At first, I thought it was a scratch so I took off the screen protector and it turns out the crack is way in there (like I can't feel the crack lines but I can see them in the right glare of the light). I tried my phone and the screen is barley unresponsive and is doing things I can't control. I was able to unlock my phone only once. I even tried restoring my iPhone and that didn't work.
Right now, I'm a college student and I won't be going home for about another month and there's no Apple store nearby. I got another digitizer through iCracked for a cheap cost and it's on it's way here but is it possible that there's more to the damage? I just wanna be sure.

You'd better get a protect case.
And a good screen protector is need too.
The normally screen protector can only protect little scratch,
such as have scratch and fall down, it can't protect your screen.

There's a new great screen protector, called Premium Tempered Glasses screen protector,
more detail, please check the ebay link

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