Screen stopped working after dropping

I've just dropped my phone (not a very hard impact at all, it was from me sitting on a chair to the ground) and green lines appeared on my screen before it all went black. My phone doesn't buzz when I connect it to charge anymore, and the charging icon doesn't appear. Also, it wouldn't let me force restart it, it doesn't do anything.

There are no cracks at all in the phone, and I only got it a month and a half ago. Is there anything I can do to fix it?

I also hear something shaking inside slightly when I shake my phone.

Another update,

It seems that my phone itself is working fine. I can turn the screen 'on' and 'off' and can press the buttons that I would use to type in my password, and I was even able to turn the flashlight on. However, the screen is still all black with the occasional green glitch on the screen when the phone is turned 'on.'