Tried to fix iphone, now screen is unresponsive and the speaker doesn't work?

So the people all over the interwebs lied and said it was easy to do a screen replacement.
I got the whole thing apart, replaced the screen, realized I mislabeled the screws and used random ones to put it all back together. (I know, stupid as hell, I was stressed after 5 hours of doing this) Turned it on and it seemed to work, but it would only vibrate (that is where I think the speaker doesn't work) and when I went to type my password in the touch sensors weren't doing anything. What the hell should I do? I don't know if I wan't to try and fix it again myself or if I should try and get a pro to do it.

If you have the iPhone 4 or newer, it's not replaceable. The 3G and older can be replaced, but it is by no means easy and you shouldn't attempt to do something like that unless you regularly work with computers and are good with the such. If you do not know entirely what you are doing then you could have damaged other parts of the phone. I would take it somewhere to get it fixed, or the apple store. Once you open it though it probably voids any warranty.

You can follow the tutorial video, maybe your flex ribbon is not connected well