My iphone 5c won't work

So, today I decided to do a stupid idea to take apart my phone. The reason I did this was because my home button wasn't working and my screen was popping out. I found out a few bolts fell out so I just screwed them back in. I closed up my phone and realized my phone wouldn't turn on. I held down just the power button, just the home button, both and other stuff. It won't vibrate or show anything. This is really bad timing and I don't have the time to take it somewhere and pay hundreds of dollars just to get it fixed. I called Apple, they have no clue. I might've done something to the battery/ Did anyone else every experience this? If so, please help!

It could be anything, putting the WRONG screw in the WRONG spot can damage something if you put a screw that is too long in the wrong hole. Knocked a ribbon connector loose or out of contact with the place it should be. Battery could have just up and died.

So you may not have time to take it someplace, but YOU doing more fiddling is not likely to fix the issue, at least not unless you know what you are looking to correct.