Unable to turn off/restart iPhone or open any apps

Does anyone know a way to hard restart an iPhone? When I opened my phone, I tried to close my homescreen but the on/off button wasn't working. I tried to hold the power and volume up buttons to try and slide it off with no work.

Also, tried to hard restart but it wasn't working either. Moreover, I can't open any of the apps on my phone. If I hold the icon it'll let me move or delete apps, but I can't execute anything that involves opening the apps. When I hold the power button, sometimes I receive the voice control option but that does nothing.

Oddly enough, my screen can go to sleep and I can unlock my screen to open the phone but nothing other than that.