I think my iphone 4s is broke?

So basically a girl ran past me and my Iphone4s fell out my hand and dropped. When i looked at it a bit of the screen was cracked and the touch screen wasn't working.
My family friend said he would fix it but when he replaced the screen the touch screen still wasn't working.
I've got the phone back and the touch screen still dosent work at all.
what do you think is wrong with my phone?
How much would it cost to get it fixed?

You can get some professional help at the apple store, just visit apple and ask them what they can do to help you fix your iphone.

There are many iphone repair shops who will replace the touch glass for $60-$100 in about an hour.
Your friend, simply replaced the glass. Not the same hun.